I have AGEE roots,too. I just discovered your query and thought you deserved a followup to encourage you to keep looking. There are a lot of AGEE surnames in TN, KY, VA areas --are are said to have been descendants of two original immigrants. Some info I found said the name is usually French Huegenot and derived from a lot of spellings--such as ANGIER, AUNGIER,even some spellings that seem unlikely.
You probably need to just keep logging onto sites like this and read all the other queries and responses--as many as possible from time to time. Just keep searching--putting a birthyear, names, in heading sometimes helps get a response. Also try Rootsweb and Ancestry.com.Sometimes there are county groups, so look for Smith County genealogy sites. Also, just go to the Internet and do a search for the surname and check out what pops up.
On Ancestry.com and also Genealogy.com there are annual/etc. memberships that open us some useful info, such as census rolls, birth, death records. All the info out there is provided by people like you and me (many who love to research and volunteer info) who have researched. I searched for a couple of years on all the free sites until I felt I needed to join for at least a year to find more info.Also, birth certificates can be found in the county where born. And that's the direction I'm going to have to go soon--maybe after New Year's.
My great great grandmother was Sarah Catherine Agee, born 1842 in TN, married to a John Henry McLain, born 1837, TN. That is one of the few facts that I know right now about Sarah, except for the stained glass windows in her memory placed in the Newport, AR First Christian Church by one of her sons. My mother knew about the windows and told me and I went and saw them. I don't know where they married, but Sarah and John ended up in Arkansas in the town of Walnut Ridge, Arkansas (Northwest area above Newport, AR.) One of their sons, William David McLain, was born 1859 in Walnut Ridge, AR, died April, 1921 in Newport, Jackson Co., AR. His siblings were Charles, Ruth and John.
William David married my great-grandmother, Clara Cooper, in 1898 and they made their home in Newport, AR. There is, I'm told, a lot of information in the Newport library and courthouse and in the Jacksonport courthouse as he was fairly prominent in the growth of the area and served as a county circuit judge--though he made his living as a sawmill owner.
You don't need all this McLain info, but my point is Keep Looking. It's frustrating but often rewarding. I first contacted a name on a site while looking for McLain info on W.D. McLain, sending an email to the person. She had lots of info as she turned out to be a distant cousin--and she told me Sarah was an AGEE. Then I noticed an article in our Knoxville, TN newspaper right after that about JAMES AGEE AVENUE--so I looked him up and discovered that he wrote the screenplay for "The African Queen."So just keep looking--you never know where you'll find a little bit of the puzzle.