Jacob Brooks first shows up in Preble County on the 1841 presonal property tax rolls in Washington Twp. also a Henry Brooks in Jackson Twp. in 1842 both Jacob and Henry are in Jefferson Twp. in 1844 Henry moves to Dixon Twp. Jacob on Rolls until 1850 when he is listed as Non-Resident.
The family is listed in the 1850 census Jefferson Twp. Preble county page 472 taken Sep.28
Brooks Jacob 44 Va.Farmer Hannah 41 Va. John 21 Va. Nicholas 18 Oh. Mary 15 Oh. Susan 14 Oh. Lucinda 12 Oh. Margaret 10 Oh. Joseph 8 Oh. Sarah 7 Oh. Peter 3 Oh. Daniel 20 Oh.
There was a Daniel Brooks marriedElizaberh F. Cook 12-26-1852 and a John Cook married Lucy Mitchell 7-12-1855 in Preble records