The organisation was led by John Hargrave, who gradually turned the movement into a paramilitary movement for social credit. With its supporters wearing green shirts, in 1932 it became known as the Green Shirt Movement for Social Credit and in 1935 it took its final name, the Social Credit Party. The party published the newspaper Attack and was linked to a small number of incidents where green-painted bricks were thrown through windows, including that of 11 Downing Street.
The party began to decline when political uniforms were banned in 1937. Its activities were curtailed during World War II, and attempts to rebuild afterwards around a campaign against bread rationing had little success. Hargrave stood again in the 1950 general election, but after he gained only 551 votes, the party disbanded itself in 1951.
A second Social Credit Party was founded in 1965 by C. J. Hunt, a member of the former party, but it had little success and disbanded in 1978.
References
Youth Movement archive (http://www.aim25.ac.uk/cgi-bin/search2?coll_id=3872&inst_id=1)
SocialCredit (often called Socred for short) is an economic ideology and a social movement which started in the early 1920s.
One such country was New Zealand, where the SocialCreditParty gained several seats in the national parliament, with 21% of the total votes at one election.
Although SocialCredit lays the blame for many economic woes at the feet of private banks, most especially those that practice fractional-reserve banking, there is no suggestion that Douglas was anti-Semitic.