The 'Maggie'

I don't recollect seeing any mention of it in the credits of the film nor in any of the comments on this site however "The Maggie" is very obviously based on "The Vital Spark".

Neil Munro wrote "The Vital Spark" in 1906, the collected tales of Master Mariner Para Handy and his Clyde puffer The Vital Spark which he had previously had published as articles in the Looker On column of the Glasgow Evening News. On board were McPhail the engineer, Dougie the deck hand and Sunny Jim the cabin boy. Neil Munro went on to write more columns and collated these into two further books detailing Para Handy's exploits and misdeeds while travelling the coastline of Scotland. Much later writer Stuart Donald took up the baton and wrote three further volumes of Para Handy's tales, a brave thing to do considering the place in Scottish popular culture.

The BBC Scotland made a small run of TV programmes in the late 1960's and early 1970's which were revisited in 1994 by Gregor Fisher (Rab C Nesbitt and the Baldy Man) in the two series of "The Tales of Para Handy".

Anyone familiar with Neil Munro's work would recognise the characters on board The Maggie in an instant. They may have different names but the characters are identical.