Hi Mike, what years was Thomas Green and his wives married?
I have found a Thomas Green marrying Elizabeth Lam, 8-May-1862, then a Thomas Green marrying Mary Eliza Hardy, 4-Apr.-1863 in Taylor County and in Lafayette County a Thomas Green
marrying a Ira Cason,13-June-1915.
Dixie County was formed from Madison and Lafayette counties
in 1923 or 1925.If your ancestor was born before this time
he was married in one of the other counties mention above.
I hope this will help you in some way. I've been doing this
kind seaches for over 35 years on my own family, I'm getting
old, but I still love doing family history.
Have a good day.