Hi Ella - it is not easy to correct information. Some authors object to any corrections. Others are ok with it, but never change their information.I would suggest you go to the site on www.worldconnect.rootsweb.com and pull up the information and then use a "post it note" and see what the author says or does. Perhaps he has proof that wasn't posted, or would like your input!
I did find by using google:
James Thomas Giddens b. 25 May 1839 Wayne Co, NC
father Mitchell Giddens b. 12 Oct 1802 Wayne Co, NC died 18 Dec 1851 NC
Mitchell Giddens married Letisha M. Britt b. 1817 Wayne Co, NC and died 3 jan 1895 NC
their child James Thomas Giddens was the 3 child of 10 listed.
The title of the posting was FOUR FAMILIES OF THE SOUTH by Keith Giddeon
I don't know if this is your James Thomas or not.
James and Thomas are both very simple popular Christian names for sons.
Hope this helps....and so glad that you have letters and things - always good proof!