Sarah's bothers and sisters were:
Abigail b. about 1844 ( died young?)
Nehemiah b. 1847 d. 1921
Elizabeth b. 1854 d.?
Sarah's parents were John A.M. Gilbert and Rebecca Van Horn. Abel Gilbert and Dentia Ostrom had Caleb b. 1800 who had
John A. M. b.1826
Abel came from NY with with 4 brothers, James, Stephen, William, and Caleb about 1784. Hope this helps. I have more info if this is your family.