What was lee's religious afiliations?

General Robert E. Lee was an Episcopalian.

I found a story about him receiving communion with a black visitor to
St. Paul's Episcopal Church in Richmond (a little more than midway
down the page):
http://news.nationalgeographic.com/news/2001/09/0907_smithgenlee.html

Mention of his funeral procession at the Episcopal church he was a
member of:
http://www.findagrave.com/cgi-bin/famousSearch.cgi?mode=city&FScityid=152910

He is listed among other famous Episcopalians near the bottom of this
page:
http://stthomastemecula.com/episcopalians.htm

Finally, the bottom of this web page has an excerpt from a book
written by Lee's son that cinches it:
http://www.geocities.com/garebel942/lee.html

Google searches performed:
general robert lee church
general robert lee episcopalian