I've always loved the "Roving Gambler/This Train" medley from the first time I heard OUAT. It's a great combination of two traditional songs, the key changes work well, and the guys sound like they're really into it.
I'm curious who did this arrangement. KTOR credits it to Samuel F. Omar. That name is not familiar and sounds a bit made-up. I ran a Google search and several sites say that Samuel F. Omar was a pseudonym used by David Crosby of the Byrds and Crosby, Stills & Nash.
The Trio recorded Roving Gambler/This Train in 1966. By then, Crosby and the Byrds had hit the big time, so it's unlikely that Crosby was picking up pocket change doing arrangements for the Trio. I have never heard that Crosby was a pal of Stewart's or the Trio's.
Does anyone know the story here? Was this arrangement done by Crosby and, if so, how did that come about? I suppose it's possible that this is an arrangement that Crosby did in his pre-Byrds days as a member of Les Baxter's Balladeers.