All of Bob McQuillen's bands are wonderful New England-style contra music. I love his current band, Old New England, and have all their recordings. Bob, 70+ years young, was recognized last year by the (U.S.) National Endowment for the Arts with a National Heritage Fellowship for his work keeping traditional contradance music alive. (He also writes the loveliest waltzes of anyone I know. The real-life "Amelia" who inspired his waltz by that name waltzed onstage to Bob's music on the night he received the award--a touching moment, for sure!) In addition to quite a few thousand dollars, the honor singles Bob out as a national treasure of folk music.

Dudley Laufman's Canterbury Country Dance Orchestra is also an old-style New England contra group--don't know if anything of theirs is still in print though.