I am the great-great-granddaughter of Felix Aldridge through his son William H. Aldridge. I've just had some exciting new luck with the 1850 census, and think it possible that others may not have found these records. This would mean a later date of birth for James L. Aldridge (Felix's father) than the one most researchers have been using.
1850 Census, St. Francis County, Arkansas, Johnson Township, Roll 30, Book 1, p. 81*
James L. Aldridge49 M Farmer N.C. Martha A. Aldridge45 FTenn George W. Aldridge23 M Farmer Ala Louisiana G. Aldridge 21 FAla Caroline Aldridge18 FAla Nancy A. Aldridge16 FAla Isom Aldridge15 MAla Martin Aldridge10 MAla Alexander Aldridge7 MAla Elizabeth Aldridge5 FAla Andrew J. Aldridge3 MAla
*Since James was elected Justice of the Peace in Fayette County, Alabama in 1849, he must have only very recently moved his family to Arkansas.
Only one child of James and Martha's 10 children, Felix, has stayed behind in Alabama. He is to be found in the 1850 census in the home of John B. Woodward, probably his new brother-in-law (1850 census Fayette County, Alabama, Division 15, Roll 5, Book 1, p. 83b):
John B. Woodward31 M Frm(?) Al Sarah (?)18 FAl (probably John's sister?) Felix20 M farm Al (no last name is recorded, but we know that Felix Aldridge married Lucinda Woodward c. 1850) Lucinda20 FAl