Contact Us Phone:5198245154 Fax:5198246156 General Inquiries: Email us Here! Address Big Brothers Big Sisters of Guelph 285 Woolwich St Guelph, ON, N1H 3V8 ADMINISTRATIVE STAFF Mike Treadgold Executive Director ext. #224 Marg Allen Program Administrator ext. #221 Cathy Simioni Bookkeeper ext. #225 CASEWORK STAFF Brigitta Wideman Casework Manager ext. #227 Lisa Steduto Caseworker, Community-Based One-to-One Program ext. #231 Holly Alac Casework Development Specialist ext. #233 Lois Allen Caseworker, Site-Based One-to-One Program ext. #232 Katie Morden Caseworker, Site-Based and Community-Based Group Programs ext. #234 FUND DEVELOPMENT STAFF Darryl Blake Program Development Writer ext. #222 Jennifer Tremaine Resource Development Specialist ext. #230 Julia Vachon Fund Development & Communications Coordinator ext. #226 Facebook Twitter Google+ LinkedIn