The reconstruction of the fort was started in 1937 (featuring only the walls and two barracks). The reconstruction was jointly sponsored by the Provincial and Federal governments and the Niagara Parks Commission, and was a way to invest in a long term project while providing employment during the Depression. The fort was restored to the 1812-1814 period and officially reopened on July 1, 1939. During the restoration, a mass grave of 150 British and 3 American soldiers was uncovered. A monument was erected at this site, in the ruins, in 1904.