Following the action, the strikers formed the Central Ironmoulders' Association, and Logan was elected to its first committee.
The union grew quickly, and in 1904 he led a delegation to investigate working conditions in the light castings trade in England.
[1] In 1908, Logan requested one weekend a month off, to visit his family, but the union's executive committee rejected this.
He later returned to Scotland, and became the union's treasurer, working closely with general secretary Hugh Murdoch.
At the 1918 UK general election, Logan stood in Stirling and Falkirk, sponsored by his union.