Pinkham Family Genealogy Forum
The last two John Elbridge Pinkham 1835-1906, wife Emily Jane Whitney and his brother Richard Augustus Pinkham 1831-1888, wife Mary Ann Maria Hart.
They were children of Enoch and Hannah Davis (Pinkham) Pinkham. Hannah Davis Pinkham was the sister of the other four and daughter of Benjamin and Mary (Davis) Pinkham.
Enoch 1796-1875 was the son of Joseph-5 (John-4 Otis-3 John-2 Richard-1) and Sarah (Young) Pinkham.
See the Pinkham Genealogy pp. 31 and 33. Sorry not to have spotted that before.