My Family Tree

Susannah Richardson must be James 2nd wife, not just because of the age difference with earlier censuses, but because she was in White County, TN in 1820, and James was already married with 4 girls in Jackson County, TN.
I am placing all the children here for convenience until I find his first wife. Note daughter Sarah Jane Davenport Huffines says her mother was from South Carolina. Also, in the 1860 Census, Susan Davenport appears to have simply enumerated all her living children even if they were married and living in another hh. These are the children she lists:
Elizabeth b.1827
Permelia b.1828
Martha b.1831
Manerva b.1833
Nelly b.1836
John b.1838
Amanda b.1839
Matilda b.1841

Possible record of 1st marriage, if James from Prince George Co, VA:
31Dec1817 - MARRIAGE BOND: James Davenport to Nancy Cox, who signs own consent. Bryan Lester, security. Wit: Charlotte Cox. (Charlotte County, VA, Marriages)[ kdd: Matthew and Daniel are in Charlotte Co at this time; Charlotte "daughter of Rebecca Cox" marries Thomas Davenport 27 Feb 1822 (witness James Davenport). Charlotte J Cox d/o Thomas Cox and Rebecca Johnston in online trees -
http://wc.rootsweb.ancestry.com/cgi-bin/igm.cgi?op=GET&db=jackwebb48&id=I02435
Also, James s/o Matthew born~1812 is too young to be him]
, except James and Nancy are still there in 1832:
http://vagenweb.org/charlotte/chvill1.htm

Were they pronouncing it "Debinfort"? Apparent spelling in 1860 & 1870 Jackson Co, TN Census

A Permilia b.1828 lives with the family in 1860 - but not 1850 - assume she's niece.

His brother Charles is gone by 1840 Census, but there is no separate family w/ wife head of household. Instead, James hh has grown much larger and seems to be a merger of the 2 Davenport families. Indeed, by 1840, there were 2 girls <5 and 4 girls 5-10 years old. It seems likely some of those 4 were actually Charles daughters (born 1830-1835). Therefore we should have:
(by older wife b. 1780-1790)
1810-1820: 4 girls
1825-1830: 3 girls
1831-1835: 3 girls (assume 1 from Charles)
1836-1840: 2 girls (possibly 1 or more from Charles)
(by 1840 has younger wife, probably Susannah)

1836 Tax Roll - District 3

Land sale registerd 14 Feb 1825 - entered on 21 July 1824. " James Davinport #2108 50 acres...on the waters of Wartrace Creek on the North side of Cumberland River...a beech on the top of the Ridge..."