Not related

[janduscframe]

Floyd was the name of a tv character who rode a train..
Fred is an NFL'er(still playing)
Homer was a major leaguer.

What is the last name they share?

[Brooklyn]

There was a Homer Smoot and a Fred Smoot. I'm not sure about the Floyd reference

[Captain Cold Nose]

There was a Homer Smoot and a Fred Smoot. I'm not sure about the Floyd reference
Petticoat . . . Junction

[janduscframe]

I was thinking of Old Cold Nose when I typed in Floyd Smoot... Petticoat Junction and Green Acres and drove the train.