I think he was the only son of Nathan’s to live to adulthood and is designated P2d2a.

There is a death certificate for William E Martz, son of Nathan F and Eliza (Samuels) Martz. The death certificate gives his dates 5 Jun 1852-13 Jan 1921 and says he was buried at Blue Church.

There is a memorial on find-a-grave for William Martz 1851-1921 at Blue Church. This is clearly William E.

There is a link of Annie M Martz 1856-1949 at Blue Church to William Martz though on his memorial it suggests there is some question about that.

There is a death certificate for Annie Mary Martz 22 Aug 1856-6 Dec 1949 buried at Blue Church. Her husband was William Martz and her father was Daniel Hollp who had been born in Germany.

There is also a memorial on find-a-grave for Edgar H Martz who died as an infant and he is linked to William and Annie as his parents, but on his memorial it says she was Annie Samuels. I think that is wrong.