The proposed relationship of Peter Hammersley as the father of Eliza J. Hammersley and Alicia Hamersley is supported by DNA evidence indicating shared ancestry within the family lines.

Specifically, DNA evidence confirms a distant cousin relationship between WM (a descendant of the Alicia Hamersley ancestral line) and KMC (a descendant of the Eliza J. Hammersley ancestral line) with a shared segment of 46.84 cM across 4 HIR segments.

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