In my research of VA BARTLETTs, I've concluded that there are two, so far unrelated, Reuben BARTLETTs:
1. William BARTLETT c1722-1804 of Loudoun Co, VA m c1743 Mary GARDNER; ch: Gardner c1750; John c1752; William c1755; Stacey c1758 m John GORE; Daniel c1760; Samuel c1762; Betsy c1751; Thomas c1766.
Garner BARTLETT c1750-1811 on 1765 Loudoun Co tithable list; 1787 Berkeley Co lease (mentions sons William and Reubin); 1795 Botetourt Co Deed of 173 acres; 1800 Botetourt Co Land Grant; 1810 Montgomery Co census; 1811 Montgomery Co Will.Ch: Wm Reuben, John, Thomas, Lydia TOWNSELY plus 3 not named (anyone have estate records?)
Reuben BARTLETT c1778-? in 1810, 20, 30 Montgomery Co census, 1831 Floyd Tax List and 1840 Floyd Co census.from census, etc. ch: female b1800-04; Samuel 1806; Sarah 1808; male 1810-15; female 1810-20; ?female 1820-25.Samuel m 1831 Montgomery Co Mahala THRASH; Sarah m 1827 Montgomery Co Henry KING. There are also records for Reuben's brothers William (whom I believe to have m Lydia POWELL and is father of Leroy) and Thomas.I haven't found records for John or sisters Lydia TOWNSLEY or Betsy... (help)
2. James BARTLETT c1760-1823 m 1779 Temperence WHITLOCK - they lived in what is now Patrick Co, VA. Ch: Edmond 1781; Mary m 1798 Jos BREYDON; Susannah 1787, m 1803 Warren MASSEY; Thomas (d bef 1820) m 1811 Frances CLARK; Nancy 1792, m 1810 John MASSEY; James 1793, m 1813 Susannah P SHORT dau of Reuben SHORT.
James BARTLETT 1793-? m 1813 Susannah P SHORT. They are in 1820, 30, 40 Patrick Co, VA census; 1850 DeKalb Co, GA census and 1860 Campbell Co, GA census.ch: Lydia c 1815, m 1835 Jesse CLARK; Reuben S 1817, m 1841 Mary SNUFFER; female b1818; Lily W 1820; m 1840 John CANNADY; John c1822, m 1844 GA Eliz COOK; Mary c1823 FA, m 1843 GA John BOSWELL; female 1830.
You can see the birth years are about 40 years apart and they lived in Montgomery/Floyd Co, VA in one case; and Patrick Co, VA/move to GA in 1840s in other case.They also got there through two different lines unless we can eventually tie James c1760-1823 back to his parents and grandparents.