Mayor Don McIsaac is one of three Ex-Officio Voting members on the OSMH Board of Directors and represents the City of Orillia. The two other Ex-Officio Voting members represent Branch 34 of the Royal Canadian Legion, and the OSMH Nursing Alumnae. McIsaac has been a member of the OSMH Board since December 2022. He was elected Mayor of the City of Orillia in 2022.