David Kilgour , brother of John Turner 's wife Geills McCrae Kilgour , was a member of the Canadian Parliament for many years .
Turner was married on May 11 , 1963 , to Geills McCrae Kilgour ( b . 1937 ) who was a great-niece of Canadian Army doctor John McCrae , the author of what is probably the best-known First World War poem , `` In Flanders Fields '' , and sister of David Kilgour , a long-time Canadian Member of Parliament .