Freight Train Riders of America?

I saw in the newspaper obuteritary "He was a member if the Freight Train Riders of America and the Wrecking Crew." I looked on the internet for Freight Train Riders of America and Wrecking Crew. I found lots of information on the internet on FTRA. But I seem to can't find about the Wrecking Crew... Can someone please explain that to me? thanks