Who are these guys?

These appear to be figures included with the early MPC sets which had the foam rolling stock inserts that doubled as buildings when turned over & placed along the track.

I'd agree with Rob.  they immediately made me think of some figures with a set I had as a kid in the late 70's.

These figures may not be the exact same (and this set didn't have the foam inserts Rob mentions), but they sure look similar.

-Dave

Rob has it right... those are the two figures (one is missing the base) that came in 1970-1971 MPC sets.

The figures that Dave points-out are different, originating with those Workin' on the Railroad sets, and last surfacing in the James Gang set of 1980-1982.

TRW

There was one other figure in the set, a heavy set engineer.

Very cool information. Thanks very much.

Paul