John Allan "Pat" Sullivan (born 19 June 1893) was an Irish-born Canadian trade unionist.
His trial took place in 1941, and largely focused on his trade union activities, rather than his political affiliation.
He was released the following year, but had to report regularly to the police until the end of World War II.
In 1947, Sullivan left the Communist Party, denouncing its influence in the union movement.
[5][6] The CSU claimed that he had been in secret talks with shipowners, and that Sullivan had resigned when given an ultimatum by other unions leaders, to stop this activity.