Isabella Preston, plant hybridist, horticulturist, writer, civil servant (born 4 September 1881 in Lancaster, England; died 31 January 1965 in Georgetown, Ontario). Throughout her career in the male-dominated field of horticulture, she produced approximately 200 ornamental hybrids suited for the Canadian climate. She is best known for her hybrid George C. Creelman lily.
Edgar Spinney Archibald, agriculturalist (b at Yarmouth, NS 12 May 1885; d at Ottawa 23 Jan 1968). Archibald's greatest contribution to Canadian agriculture was his dedicated and active support of scientists in the Experimental Farms Service, of which he was director 1919-51.
Charles Gibb, horticulturist (b at Montréal 29 July 1845; d at Cairo, Egypt 8 Mar 1890). Poor health led Gibb to seek an outdoor occupation and in 1872 he established extensive orchards at Abbotsford, Qué, to study fruit culture and arboriculture, and to test plant material from abroad.
Jacob John Siemens, farmer, teacher, farm organizer (b at Altona, Man 23 May 1896; d Winnipeg, 12 July 1963). After attending the Manitoba Normal School, he taught school 1918-29, but then assumed management of the family farm and started to re-organize his liberal Mennonite community.