as shown in the schematic front elevational view of fig1 the preferred embodiment of the tombstone memorial plaque and support bracket assembly 20 is shown in its operational use position selectively clamped across the upper portion of a tombstone 21 . a tombstone memorial display plaque 22 is selectively clampably mounted on the upper portion of the support bracket assembly 20 . the memorial display plaque 22 is thus fixedly supported in its operational use position above the tombstone in a parallel aligned register therewith . while the memorial display plaque 22 is shown in a flat rectangular configuration , it can be of a round , oval or any other desired configuration as long as it is adapted to engage the memorial display plaque retainer slot 23 provided transversely across the upper portion of the tombstone support bracket assembly 20 as will be hereinafter described . further , the memorial display plaque can selectively display prose , poetry , appropriate decorative design and / or a photograph of the deceased . as shown in the schematic right side elevational view of fig2 and the enlarged partial cross - sectional view of fig3 taken on line 3 -- 3 of fig1 the tombstone engaging support bracket assembly 20 has a contoured configuration which includes upper transversely oriented centrally positioned front and rear raised portions 24a and 24b respectively which coact to define the transversely oriented memorial display plaque receiving slot 23 therebetween . a threaded recessed memorial display plaque retainer screw hole 25 is provided through the rear raised portion 24b . the threaded screw hole 25 is adapted to operably receive a memorial display plaque retainer screw 26 therethrough . the memorial display plaque retainer screw 26 can be selectively advanced to retainably engage the lower portion of the memorial display plaque 22 selectively positioned within the memorial display plaque receiving slot 23 . the retainer screw 26 can be selectively unscrewed to disengage the memorial display plaque 22 so as to permit removal of the display plaque 22 , as desired . as further shown in fig2 and the enlarged partial cross - sectional view of fig4 taken on line 4 -- 4 of fig1 the tombstone engaging support bracket assembly 20 is provided with downwardly extending spaced apart tombstone engaging front and rear portions , 27a and 27b , respectively . the spaced apart , downwardly extending tombstone engaging front and rear portions 27a and 27b , respectively , coact to define a tombstone engaging recess 28 which is adapted to engage the upper portion of the tombstone 21 . a threaded recessed tombstone retainer screw hole 29 is provided through the downwardly extending tombstone rear portion 27b . the tombstone retainer screw hole 29 is adapted to operably receive a tombstone engaging retainer screw 30 so as to selectively be advanced to engage the upper rear wall of the tombstone 21 . the tombstone engaging retainer screw 30 , as shown in fig4 is provided with a flat tombstone wall engaging flange 31 which is adapted to engage the tombstone wall to compensate for a tombstone which is narrower than the distance between the downwardly extending front and rear portions , 27a and 27b , of the support bracket assembly . if the tombstone width fits snugly between the front and rear portions 27a and 27b , a regular retainer set screw can be used . as shown in the cross - sectional schematic view of fig5 the tombstone support bracket assembly 20 can be selectively positioned on a tombstone 32 having an irregularly shaped upper portion . a stone shim member 33 can be selectively configured to matingly engage the irregular portion of the tombstone so as to achieve a substantially rectangular tombstone upper portion upon which the tombstone support bracket assembly 20 can be mounted . while the preferred embodiment of the tombstone support bracket assembly 20 has a contoured overall configuration as shown in fig1 through 5 , it is within the scope of this invention to provide a modified embodiment of a tombstone support bracket assembly 34 which has a substantially angular configuration . the front elevational view of fig6 shows the modified tombstone support bracket assembly 34 in its operational use position mounted on a tombstone 21 and supporting a memorial display plaque 22 in a spaced apart parallel aligned register above the tombstone 21 . as shown in fig7 the modified tombstone support bracket assembly 34 is provided with spaced apart upwardly extending front and rear memorial plaque engaging flanges 35 and 36 , respectively , which cooperate to define a memorial display plaque receiving slot 37 which is adapted to selectively receive and retain a memorial display plaque 22 therein . the rear memorial plaque engaging flange 36 is provided with a threaded set screw receiving hole 38 so as to selectively receive a memorial plaque engaging screw 26 therethrough which retainably engages a memorial plaque 22 positioned in the slot 37 . the modified tombstone support bracket assembly 34 is also provided with spaced apart downwardly extending front and rear tombstone engaging portions 39 and 40 , respectively , which coact to define a tombstone engaging recess 41 which is adapted to selectively engage the upper portion of a tombstone 21 and be retained thereon by a retainer screw 42 positioned within the threaded retainer screw opening 43 through the rear tombstone engaging flange 39 . in all other respects , the modified tombstone support bracket assembly 34 operates in the same manner as the preferred embodiment tombstone support bracket assembly 20 . as further shown in the front elevational view of fig8 the first modified tombstone support bracket 34 ( shown in fig6 and 7 ) is provided with an upwardly extending front memorial display plaque engaging flange 35 and a front downwardly extending tombstone engaging portion 39 . as further shown in the top view of fig9 the first modified tombstone support bracket 34 ( shown in fig6 and 8 ) is provided with a front upwardly extending memorial display plaque engaging flange 35 and a rear upwardly extending memorial display plaque engaging flange 36 which cooperates with the front memorial display plaque engaging flange 35 so as to define a memorial display plaque engaging slot 37 there - between . as further shown in the rear elevational view of fig1 , the first modified tombstone support bracket 34 includes a rear upwardly extending flange 36 and a rear downwardly extending tombstone engaging portion 40 . as previously discussed , the upwardly extending rear flange 36 is provided with a threaded memorial display plaque set screw retainer hole 38 therethrough and the downwardly extending rear tombstone engaging portion 40 is provided with a threaded tombstone engaging set screw retainer hole 43 therethrough . as shown in side elevational view fig1 , another embodiment of the tombstone engaging support bracket assembly is provided so as to be selectively mountable upon a tombstone which is of an above - standard thickness . the modified tombstone engaging support bracket assembly 44 is comprised of a front main body portion 45 having a front downwardly extending tombstone engaging portion 46 . the main body portion 45 is also provided with spaced apart upwardly extending front and rear memorial display plaque engaging flanges 47 and 48 , respectively , which cooperate to define a memorial display plaque receiving slot 49 therebetween which is adapted to selectively receive and retain a memorial display plaque 22 therein . a separate rear downwardly extending tombstone engaging portion 50 having an inward horizontally extending tombstone engaging flange 51 which is adapted to rest upon the upper surface of a tombstone 21 in spaced - apart aligned register with the main body portion 45 . the tombstone engaging flange portion 51 is provided with a connector bolt stem receiving hole 52 therethrough . a threaded connector bolt 53 is provided with a large head 53a which operably engages the outer portion of the flange 51 provided on the rear tombstone engaging portion 50 . the threaded connector bolt 53 is provided with a threaded stem 53b which is adapted to freely pass through the connector bolt stem receiving hole 52 into operative engagement with a threaded connector bolt stem receiving hole 54 provided in the main body portion 45 . the threaded bolt stem 53b is adapted to be selectively screwed into the threaded bolt stem receiving hole 54 so as to coact with the front tombstone engaging portion 45 whereby the front tombstone engaging portion 46 and the rear tombstone engaging portion 50 clampably engage the tombstone 21 therebetween . the front elevational view of fig1 , the top view of fig1 and the rear view of fig1 show the modified tombstone support bracket assembly 44 ( see fig1 ) as previously discussed in greater detail and will not be repeated at this point except to state that the upwardly extending memorial display plaque flanges 47 and 48 are transversely coextensive with the main body portion 45 . the same is true with the downwardly extending front tombstone engaging portion 46 and the separate rear tombstone engaging portion 50 . in summary , a contoured tombstone engaging support bracket assembly is provided for supporting a personalized memorial display plaque in a display position above and in parallel register with a tombstone . the contoured tombstone engaging support bracket assembly is provided with a front contoured downwardly extending tombstone engaging portion . the contoured tombstone engaging support bracket assembly is also provided with a rear contoured downwardly extending tombstone engaging portion in spaced - apart parallel register with the front contoured downwardly extending tombstone engaging portion so as to cooperate therewith to define a tombstone engaging recess therebetween . the rear contoured downwardly extending tombstone engaging portion is provided with a recessed threaded tombstone retainer screw hole longitudinal therethrough . the recessed tombstone retainer screw hole is operably provided with a tombstone engaging retainer screw therethrough to selectively retainably engage the upper portion of a tombstone positioned within the tombstone engaging recess so as to secure the contoured tombstone support bracket assembly in its operative use position across the top of the tombstone upon which it is mounted . the contoured tombstone engaging support bracket assembly is provided with a centrally positioned forward contoured upper raised portion . the contoured tombstone engaging support bracket assembly is also provided with a centrally positioned rear contoured upper raised portion in spaced - apart parallel register with the forward contoured upper raised portion so as to cooperate therewith to define a transverse memorial display plaque engaging slot therebetween . the centrally positioned rear contoured upper raised portion is provided with a recessed memorial display plaque retainer screw hole longitudinally therethrough . the recessed memorial display plaque retainer screw hole is operably provided with a memorial display plaque retainer screw therethrough to selectively retainably engage the lower portion of a memorial display plaque selectively positioned within said transverse memorial display plaque engaging slot so as to secure the memorial display plaque in its operative use display position upon said contoured tombstone engaging support bracket assembly . in summary , another embodiment of the invention consists of an angular tombstone engaging support bracket assembly for supporting a personalized memorial display plaque in a display position above and in parallel register with a tombstone . an angular tombstone engaging support bracket assembly is provided with a front downwardly extending flat tombstone engaging portion . the angular tombstone engaging support bracket assembly is also provided with a rear downwardly extending flat tombstone engaging portion which is in spaced - apart parallel register with the front downwardly extending flat tombstone engaging portion so as to cooperate therewith to define a tombstone engaging recess therebetween . the rear downwardly extending flat tombstone engaging portion is provided with a threaded retainer screw hole longitudinal therethrough . the tombstone retainer screw hole operably is provided with a tombstone engaging retainer screw therethrough so as to selectively retainably engage the upper portion of a tombstone positioned within the tombstone engaging recess so as to secure the tombstone engaging support bracket assembly in its operative use position across the top of the tombstone upon which it is selectively mounted . the tombstone engaging support bracket is provided with an upwardly extending front memorial display plaque engaging flange . the tombstone engaging support bracket assembly is also provided with an upwardly extending rear memorial display plaque engaging flange in spaced - apart parallel register with the upwardly extending front memorial display plaque engaging flange so as to coact therewith to define a memorial display plaque engaging slot therebetween . the upwardly extending rear memorial display plaque engaging flange is provided with a memorial plaque threaded retainer screw hole longitudinally therethrough . the memorial display plaque threaded retainer screw hole is operably provided with a memorial display plaque retainer screw therethrough to selectively retainably engage the lower portion of a memorial display plaque selectively positioned within the memorial display plaque engaging slot so as to secure the memorial display plaque in its operative use display position upon said tombstone engaging support bracket assembly . in summary , an expandable tombstone engaging support bracket assembly is provided for supporting a personalized memorial display plaque in a display position above and in parallel register with an oversize tombstone . a tombstone engaging support bracket front main body portion , is provided with a downwardly extending flat tombstone engaging portion . the front main body portion is provided having an upwardly extending front memorial display plaque engaging flange and an upwardly extending rear memorial display plaque engaging flange in spaced - apart parallel register with the upwardly extending front memorial display plaque engaging flange so as to coact therewith to define a memorial display plaque engaging slot therebetween . the upwardly extending rear memorial display plaque engaging flange is provided with a memorial plaque threaded retainer screw hole longitudinally therethrough . the memorial display plaque threaded retainer screw hole is operably provided with a memorial display plaque retainer screw therethrough so as to selectively retainably engage the lower portion of a memorial display plaque selectively positioned within said memorial display plaque engaging slot so as to secure the memorial display plaque in its operative use display position . the front main body portion is provided with a threaded connector bolt stem receiving hole longitudinally extending into the inside end surface of the front main body portion . a separate rear downwardly extending tombstone engaging portion is provided with an inward horizontally extending flange adapted to rest upon the upper horizontal portion of a tombstone in opposed spaced - apart parallel register with the front main body portion . the inward horizontally extending flange is provided with a connector bolt stem receiving hole therethrough in spaced - apart aligned register with the threaded connector bolt stem receiving hole provided in the front main body portion . a threaded connector bolt is provided with a large head for selective engagement with the outer surface of the horizontally extending flange in aligned register with the connector bolt stem receiving hole provided therethrough . the connector bolt is provided with a threaded bolt stem wichi is adapted to extend freely through the bolt stem receiving hole provided through the horizontally extending flange into threaded operative engagement with the threaded bolt stem receiving hole provided in the main body portion . the connector bolt is selectively operable to coact with the front downwardly extending flat tombstone engaging portion and the separate rear downwardly extending tombstone engaging portion so as to clampably engage the upper portion of a tombstone positioned therebetween . various other modifications of the invention may be made without departing from the principle thereof . each of the modifications is to be considered as included within the scope of the hereinafter appended claims , unless these claims , by their language , expressly provide otherwise .