Capt. John Seaman - Is this Correct?

I believe so, Keri. Because he married the second wife after age 57 and she was quite young, barely of age to marry. (According to the MPs). It is rare, but not impossible.

His findagrave profile includes a biography that cites: from Seaman, Mary Thomas, "The Seaman Family in America...," (New York: TA Wright, 1928) page 21

https://www.findagrave.com/memorial/136406587/john-seaman

"The Seaman family in America as descended from Captain John Seaman of Hempstead, Long Island" compiled by Mary Thomas Seaman, assisted by James Haviland Seaman, Jr.

https://catalog.hathitrust.org/Record/005756123

In another Seaman genealogy I read that there are three completely distinct American Seaman families. So of course that complicates things a little bit, if we're not careful.

http://longislandgenealogy.com/Surname_Pages/seaman.htm#:~:text=CAP....

http://freepages.rootsweb.com/~brookefamily/genealogy/seamanjohn.htm

http://strattonhouse.com/index.php?section=inn&content=massachu...

https://archive.org/details/seamanfamilyinam00seam/mode/2up

The Long Island Seaman family is all over "Records of the towns of North and South Hempstead, Long Island" of which there are several volumes.

https://archive.org/details/recordsoftownsof02hemp/page/n4/mode/2up...

Thanks Private User . I just wanted to make sure we did have it right. I appreciate your help.