Monsarrat was a partner in Monsarrat & Pratley, the firm that designed the bridge.
- He was born on 2 July 1871 and died on 1 March 1940. Source S112
- He had been chief bridge engineer of the Canadian Pacific Railway and chaired the Quebec Bridge Board. Source S112
- The partnership with Pratley began in 1921. Source S112Source S113
ID LGB-P-0007