Leaning tree publishing company To build $700,000 building in Longbow Park subdivision in Boulder County. Cervi's Journal Mr 22, 1973 p.8 Greeting card business employs 250 plus will top $3.5 million in sales. Plant located east of Boulder - Longmont Diagonal State Highway 119. Post N 3, 1974 section E p.l Opens museum of Western Art at Longbow Park plant, four miles northeast of Boulder. Clips: Boulder. Art. Museums. Feature on Ed Trumble's greeting card business, The Leaning Tree, and his museum of western art. Post Ag 4, 1976 p.38
