William Dillon Otter was born at Clinton, Ontario on 3 Dec 1843. He was a Veteran of the Battle of Ridgeway in 1866 and joined the permanent force in 1883. He commanded the Battleford column in the Northwest Resistance and was the first commanding officer of the Royal Canadian Regiment of Infantry in 1893.
In 1899, Otter led the first Canadian contingent in the South African War. In 1908, he was the first Canadian-born chief of the general staff and was inspector general of the Canadian Militia 1910-12, when he retired. He commanded internment operations during the First World War. Otter was knighted in 1913 and in 1922 became the second Canadian soldier, after Sir Arthur Currie, to reach the rank of general.
Within the park are several rifle pits that were fixed up to show defensive positions taken during the Northwest Resistance.