The Gazi Museum sits in the city centre, in the building used as Ataturk's lodging during his Samsun stay. It is small, old-fashioned, and useful because it puts the Bandirma story back into the streets of the city rather than leaving it out by the replica ship.
Expect photographs, personal items, and patriotic displays rather than a slick modern museum. Pair it with Ataturk Park and the Bandirma museum; together they explain why Samsun's public memory keeps returning to 1919.