James was a seeker, Mary MacDonald is not in the books, Alice and Narcissa were not a ship, it's 'furry,' not 'fury,' and James and Sirius were NOT a thing.
James was a chaser not a seeker, Mary is mentioned twice in the books as Lily's friend (but yes it is just a headcanon that she obliviated herself (which is implied in the question by "is believed"), the word "ship" does not specify canon or not, you can ship canon couples and not canon couples. the question does not say it is canon, it just asks about the name of the ship, just like the wolfstar question
I had the question about head boy and girl right by writting "Alice and Narcissa", just so you know