Gibson returned to his Yonge Street farm in 1851, after being pardoned for his role in the Rebellion. He then helped to establish the "Willow Dale" post office, named after the many willow trees that once graced this district. Members of the Gibson family were still living in Gibson House in the 1920s when the residential subdivision of Willowdale began to take place. The Gibson House, built in 1851 in the Georgian Rival style, still stands in its original location at 5172 Yonge Street, and is now a historic house museum.