unionizer

plural unionizers

1. One who unionizes.

   But again, I repeat, if Southern Baptists ever expect to evangelize and indoctrinize the people of the South we must go out to the 25,000,000 and more round about our country churches, before the floodtide of isms engulfs these little churches and the unionizers compromise and eliminate them.

   1922, Southern Baptist Handbook, page 328

   1 more example

   The collision course began the day Mr. McGowan, the workaholic son of a Pennsylvania railroad unionizer, came upon Microwave Communications of America, a tiny Illinois company that was nearly broke but had one valuable asset - an inexpensive scheme to transmit telephone calls by microwave and offer discounts to corporations.

   1984 December 2, Leslie Wayne, “MCI LOSES SOME SPARKLE”, in The New York Times