This "The Biography of the Miyake Clan" is an important and rare family book to studies of Takanori KOJIMA, but whether it is accurate or not is still questionable from the point of the rightness of this material itself; therefore the dates of his birth and death should remain as unknown.
この『三宅氏正伝記』は、児島高徳の研究に於いて重要、且つ貴重な資料とされる家伝書であるが、これらが正確かといえば、資料自体の正当性の点から疑問符が残るため、やはり生没年は不詳とせざるを得ない。