He opened Glad Day Bookshop, the first gay and lesbian bookstore in Canada, in 1970 and operated it until 1991 when he sold the store to John Scythes.
[6] Moldenhauer sold books out of his backpack at rallies, meetings and parties, and offered a small mail order service.
This escalated in 1986 when the government of PM Brian Mulroney created an internal memorandum D-9-1-1 which was distributed to all Canada Customs agents.
The memorandum essentially encouraged border agents to declare almost all incoming gay & lesbian literature to be “obscene” and therefore inadmissible.
The most famous of these was the 1987 court decision that overturned the banning of The Joy of Gay Sex [8][13] by Charles Silverstein and Edmund White.