Search the Maine Maritime Museum’s “Maine Mariners Muster”
Search the word “captain” in the online collection at the Penobscot Marine Museum
Search over 9,000 memorials in the Oak Grove Cemetery in Bath, Maine a Google Image Search for Sea Captains from Maine
Fold3 gives access to US military records, including stories, photos and personal documents of men and women who served in wars including the Revolutionary War, the War of 1812, the Civil War, WWI, WWII, the Korean War, and the Vietnam War.
MyHeritage: Access 9 billion genealogy records and historical documents, millions of historic photos and resources that span the past five centuries.
FamilySearch is the largest genealogy organization in the world. It’s free to create an account and search billions of records.