I have a few CADMANs in England: William CADMAN & wife Elizabeth Unkn. They had son George, b ca 1656, d 1718; marr Hannah HATHAWAY, d/o Arthur & Sarah (Cooke) HATHAWAY. Hannah b ca 1662, d bef 2 May 1749, prob. @ Dartmouth, MA.
They had dau Elizabeth, b ca 1685; marr William White, b ca 1682 @ Dartmouth, MA, d 1780 @ Dartmouth, MA. Eliz. & William had 11 children: Sarah; Hannah, Abner (my line); William; George; Roger; Christopher; Susanna; Elizabeth; Oliver; Thomas.
I have Abner's line on down, but not the other children.
Hope this helps a little!
Barbara in MO (but originally from NYC)