Home » Speakers ListingTo start, search by a specific category (hold CTRL to choose multiple), booking option, city, keyword, or choose a letter for last name.*New: Virtual speaking titles have been added. Choose virtual as a booking option to find virtual titles.To be added as a speaker, please click on this link, 2023 Speaker Registration Request Form and complete the form. Then send to *protected email* Categories —ConservationDemonstrationEdibles/FoodEnvironmentFloral DesignGardeningHostaHouseplantsJudging/ShowsLandscapingNative PlantsPollinatorsSeasonalShadeSpeakerSunTravelTrees and ShrubsWaterWorkshopGeneral InterestSpecialty Interest Booking Options —Virtual (Online) OnlyIn Person OnlyBoth Virtual and In-Person City Districts Served —AllD01D02D03D04D05D06D07D08D09D10D11D12D13D14D15D16D17D18D19 Search Entries: Clear#abcdefghijklmnopqrstuvwxyz Page Size Results Per Page10253050100 CITY/TOWNLasalleNAMESusan BoucherOPTIONBoth Virtual and In-PersonCITY/TOWNLasalleNAMECherie DillenOPTIONBoth Virtual and In-PersonCITY/TOWNLaSalleNAMEJan DugdaleOPTIONBoth Virtual and In-PersonCITY/TOWNLeamingtonNAMEKatharine DegoeyOPTIONBoth Virtual and In-PersonCITY/TOWNLeamingtonNAMEMary WilsonOPTIONIn Person OnlyCITY/TOWNLincolnNAMEDavid ChapmanOPTIONBoth Virtual and In-PersonCITY/TOWNLondonNAMENancy AbraOPTIONBoth Virtual and In-PersonCITY/TOWNLondonNAMEHeather JerrardOPTIONBoth Virtual and In-PersonCITY/TOWNLondonNAMEBen PorchukOPTIONBoth Virtual and In-PersonCITY/TOWNLondonNAMEIsa WebbCITY/TOWNMaidstoneNAMEOlga & Nathan CrockerOPTIONBoth Virtual and In-PersonCITY/TOWNMarkhamNAMEDarryl ChengOPTIONBoth Virtual and In-PersonCITY/TOWNMerlinNAMEMike DavidsonOPTIONBoth Virtual and In-PersonCITY/TOWNMillbrookNAMEDavid RetallickOPTIONIn Person OnlyCITY/TOWNMiltonNAMESean JamesOPTIONBoth Virtual and In-PersonCITY/TOWNMiltonNAMEGrace MooresOPTIONBoth Virtual and In-PersonCITY/TOWNNaughtonNAMERon LewisOPTIONBoth Virtual and In-PersonCITY/TOWNNepeanNAMEJudy FineOPTIONIn Person OnlyCITY/TOWNNewmarketNAMEMolly ShannonOPTIONBoth Virtual and In-PersonCITY/TOWNNiagara FallsNAMESharona GorenOPTIONBoth Virtual and In-PersonCITY/TOWNOakvilleNAMEMarie DeckerOPTIONBoth Virtual and In-PersonCITY/TOWNOakvilleNAMECathy KavassalisOPTIONBoth Virtual and In-PersonCITY/TOWNOldcastleNAMEMaria PappOPTIONIn Person OnlyCITY/TOWNOligochaetology Laboratory, Kitchener, OntarioNAMEJohn W. ReynoldsOPTIONBoth Virtual and In-PersonCITY/TOWNOshawaNAMENatasha LazaroffOPTIONIn Person OnlyCITY/TOWNOttawaNAMEAnnise DobsonOPTIONBoth Virtual and In-PersonCITY/TOWNOttawaNAMECandace DresslerOPTIONIn Person OnlyCITY/TOWNOttawaNAMERebecca LastOPTIONBoth Virtual and In-PersonCITY/TOWNOttawaNAMEJasmine Nihmey VasdiOPTIONVirtual (Online) OnlyCITY/TOWNPeterboroughNAMEMargaret Burley🔎 Search the OHA websiteLatest OHA News Recruitment, Retention and Succession Planning Support the OHA! December 50/50 Draw Recruitment, Retention, and Succession Planning Trillium Autumn 2025 Learn MoreFavourite PlacesSecure Forms & LoginAwards and GrantsGuide for SocietiesThe Supply ShopFind a Society Society Name (enter one or more words) SearchesEvent CalendarDistricts ListingSocieties ListingJudges ListingSpeakers ListingSecure FormsLogin and AccessAdd an Event