I found an obit for son, Roderick. From The Calgary Herald - Feb. 23, 1983:
COOKSHAW - February 20, 1983, Roderick James (Roddy) at Los Angeles, California, formerly of Claresholm and Vancouver, B.C., beloved son of Les and Angeline Cookshaw and dear brother and brother-in-law of Joanne and Bill Roloff, Dawson, Manitoba. He is also survived by four nieces, Angela, Mona, Jody and Mandey and numerous aunts and uncles. Born and educated at Claresholm, he later moved to Vancouver, B.C. and then to Los Angeles, California. Family Services at Leyden's "Chapel of Remembrance" Claresholm on Friday at 2:00 p.m., Rev. Willian Wright officiating. Cremation, Foothills Crematorium. Leyden's Funeral Home Ltd., Claresholm Branch, Directors of Services.