My understanding, (and I'm sure someone will correct me if I'm wrong), is that the story goes something like this. Doug Irwin worked for Alembic and on Wolf when Wolf (not yet called Wolf), was built by Alembic. Garcia bought it and put the wolf decal on below the bridge. Then it fell and the headstock broke off. By this time, Irwin was no longer with Alembic. Jerry took Wolf to Irwin for the repair. Irwin replaced the headstock and swapped the Alembic logo (I believe I've seen early pics of Wolf with the Alembic logo ) for his own, a flying Eagle or something. He also replaced the wolf decal with the inlaid version.
As for the Ed Roman claim, I remember a thread about it on this site (I suspect Dave, our esteemed moder, will find it) in which Mica of Val debunk Roman's version.
Bill, tgo