than 4$\sigma$; this comprises our total sample. Our “direct" oxygen abundance measurements have relatively small errors, but comparisons to luminosity and stellar mass calculations require accurate distance determinations. This motivated further cuts from our sample to keep only objects with reliable distance determinations using the tip of the red giant branch (TRGB) or Cepheid variables (ceph), giving rise to our 13 object “Select" sample. In addition, the L06 data were updated with 4.5 $\mu$m photometry from @dale09 (to minimize the effects of aperture differences between the previous photometry and our own), distances from @dalcanton09, and “direct" oxygen abundances from @croxall09 when available. Those objects that passed the selection criteria were assembled into a similar “Select L06" sample of 14 objects. Other Local Volume objects presented in @vanzee06a and @marble10 were considered for an additional “Select" sample. Using the same criteria mentioned above, this provided 11 additional objects with “direct" abundances at a strength of $4\sigma$ or greater and accurate TRGB distances. The 13 “Select" objects from this paper are noted in Table \[tbl5\] and the properties of the additional objects taken from the literature are listed in Table \[tbl6\]. Together these data sets made the final “Combined Select" sample comprised 