My grand father was in WW1 and my father in WW2, my father was in Great Lakes IN month of Apr. what i have is a number CO 326 and letters OSNRTC. in 1945, on my grand father i do not have much, i have some letters, where he was in Canada in 1913, and also different states, back around the late 1800 and early 1900...he was related to R. L. Herhold........but my grandfather and father were both in the Navy.......and i thank the Navy for their service when he passed......if any one has any info on this ........thank-you