I'm tracing my family, descended from William Dow (fc, Book of Dow). Wm settled in Milton, Ulster Cty, NY before 1794. He married Sarah Fowler there and had several children. Have not run into a Frank Dow/Ida Laforge in any of the descendents, but have discovered many discrepancies in BoD, including children not recorded. Contact me directly, and I'd be happy to fill you in.