Just so we're all on the same page:
1872 - The Original Sidewheeler S.S. Mount Washington Launched in Alton.
1939 - [Spark, Flame, Glug-Glug] S.S. Mount Washington Sinks at the Weirs after a fire.
1940 - Steamer Chateauguay cut into 20 pieces in Vermont, shipped by train to NH, put back together (with a new look) and becomes S.S. Mount Washington II
1982 - S.S. Mount Washington II cut in half. 25 feet added to the middle. Renamed M.S. Mount Washington.