Career
Nicolson served with the RCMP from 1923 to 1927 (and again from 1932 to 1941), New Brunswick Provincial Police 1928-1930, Nova Scotia Provincial Police 1930-1932, then with the Canadian Army from 1941 to 1951. Leonard Hanson Nicholson had only a primary school education leaving school to assist his family. He served as a Provost marshal in World World War World War II
The Royal Canadian Mounted Police headquarters building in Ottawa, Ontario was named after Leonard Nicholson.
He is the highest declerated RCMP officer in Canadian history and his medals are currently located at the RCMP headquarters in Regina.
In 1955 he received an honorary Doctor of Laws from the University of New Brunswick.