I've sung this as a sort of medley with Where have all the flowrs gone...and at least a simple version only needs 3 chords
(G(Anybody here seen my (C) old friend (G) Abraham
(C)Can you tell me where he's (D7) gone
(C(He freed a lot of (D7) people (G) now
(C)I just turned a(D7)round and he was (G) gone.
I'm sure some of you real guitar players have a more elegant version (I'll be watching!) but this is servicable.