Series consists of artifacts donated by J.B. McLachlan's grand-daughter Mary McLachlan-Sanger.
Item is a cheque addressed to J. B. McLachlan for the sum of $200.00 from the United Mine Workers of America. Two notes are included with the cheque that reflect McLachlan's frustration with UMWA, expressing that he did not want the money enclosed.
Item is a letter addressed to Tim Buck dated June 13, 1936. This letter details McLachlan's reasons for withdrawing from the Communist Party of Canada, explaining that he had been misunderstood, shown a lack of support, and believed the party was falling to the right.
Item is a poem written by J. B. McLachlan titled, "In the Miners' Row," about the power that the mine companies had over workers and the duties that workers ought to carry out to fight for their rights.