I have a 1.5 page biography on William W., son of Anderson and grandson of Lattimer. It states that Lattimer, a native of VA, grew up in VA "amid the pleasant scenes of his birthplace" and moved later in life to OH. At 80 years old, he moved to Anderson County Kansas and died there at 90. Son Anderson was born in Loudoun County VA. Possibly Lattimer was also born in this county. Son Anderson "passed his early life" on his father's VA farm and married Rachael Kemp, also of Loudoun. They moved from Loudoun to Belmont County OH after birth of 1st child.
Biography has more on Anderson (both wives - Rachael Kemp and Martha Hubbard)and William W.(married S.E. Blain).Anderson died in Brown County IN in 1882.