Antique Black & White Postcard. A promotional postcard depicting Wilf Carter, also known as "Montana Slim" and his songbook "Songs of the Plains and Rockies." Southern Music Publishing Co. Divided back, postmarked 1938 from New York City. Condition: This is an original photo postcard, not a copy or reproduction. It has a corner chip, postal cancel on front, pin hole, and album remnants on reverse side. Comments: Wilfred Arthur Charles Carter (December 18, 1904 - December 5, 1996), professionally known as Wilf Carter in his native Canada and also as Montana Slim in the United States, was a Canadian Country and Western singer, songwriter, guitarist, and yodeller. Widely acknowledged as the father of Canadian country music, Carter was Canada's first country music star, inspiring a generation of young Canadian performers.