Hello, I have the Union Book of my father for when he was a machinist journeyman for the central Lodge #50 in Chicago, International Association of Machinists. He was only a machinist for about two years. I was wondering of such an organization keeps initial records, applications, etc. The dates are 6-6-1947 to 1-1-1949. Thank you, Paul researching: Macekonis, Stankevicius, Kossuth/Kosuit/Kosuth, Sarna, Marcinek