I didn't do that the first couple of times, and lost 1998-2001 history. Oh, well... :)
"Mr. Jeeves" is from P.G. Wodehouse, and more precisely from Stephen Fry's portrayal of the character in the early 90's BBC TV show "Jeeves and Wooster." He is the man with all the answers.
It's worth a shot to ask Jim if that data is retrievable, and whether it can be linked to your new handle.
Can't hurt to ask.