The Parkwood Estate, located in Oshawa, Ontario Canada was the home of Samuel McLaughlin (founder of General Motors of Canada) and was home to the McLaughlins from 1917 until 1972. Construction began in 1916 by the Toronto architectural firm of Pearson and Darling. In 1989, the 'Parkwood Estate' was officially designated a National Historic Site of Canada[2] and tours are now given year-round.