Guelph in Wellington County, Ontario — Central Canada (North America)
Charles A. Zavitz 1863-1942
Assistant Superintendent of Experiments, Ontario Agricultural College, 1888-1904
Head, Department of Field Husbandry, Ontario Agricultural College, 1904-1927
Charles Zavitz was born in Coldstream, Ontario, in 1863. He graduated from the two-year program at the Ontario Agricultural College in 1886 and was appointed assistant chemist. When the three-year degree program was introduced, Zavitz enrolled and was one of the first five students to receive a BSA, conferred by the University of Toronto in 1888. Within five years, he was solely responsible for experiments and was named head of the new Department of Field Husbandry in 1904.
Using a variety of seeds from around the world, Zavitz implemented innovative selective breeding techniques, small experimental plots, and meticulous measurements and testing. He increased Ontario's crop yields exponentially by using the Ontario Agricultural Experimental Union to distribute his experimental materials throughout the province.
Zavitz increased alfalfa production, experimented with potatoes and pioneered the culture of soybeans in Ontario. He is best remembered, however, for his development of cereal crops, particularly OAC 21 barley. The leading variety of barley for over 30 years, OAC 21 provided the basis for almost all subsequent varieties and became the standard malting barley in the brewing industry. Zavitz was named the first Canadian Fellow of the American Society of Agronomy in 1912. The University of Toronto awarded him an honourary Doctor of Science degree in 1916 to honour him as a scientist, teacher and a man of peace. In 1935, the University of Western Ontario awarded him a Doctor of Laws degree. Zavitz was inducted posthumously into the Canadian Agricultural Hall of Fame in 1974 and the Ontario Agricultural Hall of Fame in 1984. In 1999, he received a Doctor of Science degree from the University of Guelph to commemorate the 125th anniversary of the Ontario Agricultural College.
Zavitz Hall 1914
Generously donated by The Summers Family
In recognition of the Schneller and Summers families' commitment to farming and rural activities and the four generations who attended OAC.
Erected by University of Toronto.
Topics. This historical marker is listed in these topic lists: Agriculture • Education • Science & Medicine. A significant historical year for this entry is 1863.
Location. 43° 31.854′ N, 80° 13.618′ W. Marker is in Guelph, Ontario, in Wellington County. It can be reached from Reynolds Walk 0.1 kilometers west of Trent Lane. The marker is on the University of Guelph campus, accessible by foot on Reynolds Walk, approx. 130 metres west of Trent Lane. Touch for map. Marker is at or near this postal address: 43 Reynolds Walk, Guelph ON N1G 1Y4, Canada. Touch for directions.
Regionally, this marker is in the Huron-Perth-Waterloo-Wellington Area and in Southwestern Ontario. It is also in Central Canada. Globally, it is in North America, the Western Hemisphere, the Western World, and the Anglosphere. Historically, it finds itself in what was once a British colony, the Viceroyalty of New France, the Haudenosaunee (Iroquois) Confederacy, and Ruperts Land.
Other nearby markers. At least 8 other markers are within walking distance of this marker: MacNaughton Building (within shouting distance of this marker); George E. Raithby 1901-1981 (within shouting distance of this marker); William Laing Hutt 1867-1948 (about 90 meters away, measured in a direct line); William Henry Day 1870-1938 (about 90 meters away); MacKinnon Building (about 120 meters away); Winegard Walk (about 150 meters away); John Douglas MacLachlan 1906-1987 (about 150 meters away); Site of the Gymnasium and Convocation Hall of the Ontario Agricultural College (about 150 meters away). Touch for a list and map of all markers in Guelph.
Credits. This page was last revised on October 10, 2025. It was originally submitted on October 5, 2025, by Tim Boyd of Hamilton, Ontario. This page has been viewed 51 times since then and 12 times this year. Photos: 1, 2. submitted on October 5, 2025, by Tim Boyd of Hamilton, Ontario. • Andrew Ruppenstein was the editor who published this page.

