Do you have any hard evidence for your info? For example, where did you find the birthdates?
My info comes from :
Marriages of Orange County (Knorr) 17 Oct 1801 Edmund Peacher and Lucy Hilman, Duu. of Joseph Hilman wo concents. Sur. Uriel Hilman, Wit. William Hilamn. Married 20 Oct by Rev. Nathaniel Sanders, Baptist
Orange County Deed Book 13, pg 503 April 23, 1765 records land sold from William Peacher and Frances his wife.
Orange County Personal Property Tax 1800-1807 has Edmund Peacher appearing for the first time on March 29, 1801
William Peacher appears in the same book with 2 while male tithables in 1800, one in 1801 Marriage register, Spottsylvania County 1795-1853, reel 53 shows Thomas Lumsden married to Cyrina Peacher on Sept 1, 1836
Spottsylvania County Will Book P pg.592 shows the will of Edmund Peacher who names his daughter "Serena Lunsden wife of Thomas"