Complex sentence: While the house could have been sold to private interests, the Keg Restaurant was interested, the family decided instead to donate it to the city, and in 1984 it opened as a museum; it is jointly operated by the city and the Ontario Heritage Foundation.
Split into simpler sentences: While the house could have been sold to private interests such as the Keg Restaurant, the family decided instead to donate it to the city. In 1984 it opened as a museum, jointly operated by the city and the Ontario Heritage Foundation.