| Name | City | OHA Cert | Other Cert | Districts | OHA Home Society: |
|---|---|---|---|---|---|
| Linda Lynott | Richmond Hill | Yes | GCO-design, ADS Dahlia Judge |
| |
| Linda Parker | Thunder Bay | Yes |
| ||
| Linda Wallis | Brighton | Yes |
| D 4 Brighton HS | |
| Linda Yeoman | Ingersoll | Yes |
| D 10 Woodstock HS | |
| Lois McKenzie | Desbarats | Yes |
| ||
| Lorraine Luski | North York | Yes |
| D 5 North York Garden Club | |
| Lucille Forth | Bracebridge | Other | RBG-Hort |
| Bracebridge/Gerogetown/Guelph |
| Lynne Melnyk | Elmvale | Yes | RGB-Hort |
| |
| Madeline Archer | Lombardy | Yes |
| D 2 Perth HS | |
| Margaret Meyer-Smith | Cayuga | Yes |
| D 6 Haldimand HS | |
| Maria Smith | Richards Landing | Yes |
| D 13 St. Joseph Island HS | |
| Marie Carson | Hanover | Yes |
| ||
| Marie Decker | Oakville | Yes | GCO-design, RBG-hort & Rose |
| |
| Marie Hynna | Thunder Bay | Yes |
| D14 Thunder Bay HS | |
| Marie McCutcheon | Brussels | Yes |
| ||
| Marj Larson | Oxdrift | Yes |
| ||
| Mary Cameron | Burlington | Yes | RBG 2011 Hort, Rose |
| |
| Mary McLean | Toronto | Yes | Design 2016 |
| |
| Mary A Smith | Guelph | Other | GCO-Design |
| |
| Mary Ann Vercammen | Newmarket | Yes | GCO-design, RBG-hort, Rose, Lily |
| D 5 Newmarket HS |
| Mary J. Audia | Toronto | Other | RBG-hort, GCO-design, Rose |
| D 5 North Toronto HS |
| Michael Erdman | Toronto | Other | GCO-design, RBG-hort, Rose Judge |
| D 5 Greater Toronto Bulb Society |
| Michelle Goff | Guelph | Yes | RGB-Hort, Rose, OAAS-Hort |
| |
| Michelle Lynch | Oro Medonte | Yes | GCO-design, Rose, RGB-Hort |
| |
| Michelle Wilson | Brampton | Yes |
| D 15 Brampton HS | |
| Name | City | OHA Cert | Other Cert | Districts | OHA Home Society: |
