I have seen numerous trees that have William Kelley and Tabitha Cook as the parents of Alvah Kelley and Michael B. Kelley. None of them have original sources listed and I am trying to find someone who can provide documentation of Tabitha's last name and birth date. William is in the 1820 and 1830 census in Whitehall. Trees say William was born in 1775 and died in 1840 and Tabitha born in 1775 and died in 1842 (again, no original sources listed for either). Some list Tabitha's parents as Michael Cook and Hannah Henderson [marriage info for people of those same names has them married in 1777 - 2 years before the supposed birth date of Tabitha] However, by calculating ages from the 1820 and 1830 census, Tabitha would be born circa. 1780-84. Can anyone help with more info?