Arthur Reid Lempriere was an officer in the Corps of Royal Engineers. He was in the third and largest group of Engineers to arrive in the Colony of British Columbia in 1859 and served as a lieutenant subaltern in the Columbia Detachment of the RE's there until 1863. He retired as a Major-General in 1882. Lempriere surveyed the route from Hope to Lytton via the Coquihalla River in 1859.
Mount Lempriere in the North Thompson region of the British Columbia Interior, between Kamloops and Tete Jaune Cache-Valemount, was named after him by 1917. A Canadian National Railway railway point in this area was also named Lempriere, where there was a post office from 1942 to 1945 when Japanese were interned at a work camp in this area.