David check this out. I believe I am on the right path.

"In 1975, Lee's full rights of citizenship were posthumously restored by a joint congressional resolution effective June 13, 1865."

https://www.archives.gov/publications/prologue/2005/spring/piece-lee.html

BTW pleas drop me an email. gpthelastrebel@att.net. I'll answer in the next couple of days.