Tallman began his career in the automotive business as a teenager in the parts department of a local car dealership. In 1970, Tallman opened his own garage and used car lot. He became part owner of Kemptville Truck Centre in 1973, later becoming sole owner.
He grew the dealership to nine locations and rebranded it Tallman Truck Centre, passing the torch to his son Kevin Tallman in 2008. Today, it operates as Rush Truck Centres of Canada with 14 locations.
“Gerald was known as a leader in his community for his charitable efforts opening the Tallman Family Emergency Room at the Kemptville General Hospital in 2010 as well as hosting Annual Charity Golf Tournaments supporting various organizations.”
His obituary can be read here.