The proposed relationship of John Schaffer Simon as the father of Della May Simon and MES is supported by DNA evidence indicating shared ancestry within the family lines.

Specifically, DNA evidence confirms a 2nd cousin, twice removed relationship between NY (a descendant of the MES ancestral line) and JM (a descendant of the Della May Simon ancestral line) with a shared segment of 128.91 cM .

This match is consistent with their placement within these shared ancestral branches.