Gary,
Thanks for the info. I don't see a match-the L may be for a nickname...? I still believe it's a unit number and someone's initials-gut feelin'. Any way you could check those other regiments or tell ME how? I really appreciate the effort you've done. If you're local(Marietta,Ga.) or get by this way, I'd like to buy you a BBQ sandwich or something and say thanks.
Steve