Am researching two men who married two great aunts. One was in the Merchant Marines and one was a Great Lakes Seaman. Can someone elighten me as to the difference of these two affiliations? I have a Charles Popham who was a Great Lakes Seaman, and a Wilber Veazey who was in the Merchant Marines. I would like to find service records for these two. I found the website for Merchant Marines, but need death, birth, etc. information. Any help would be appreciated.