We regret to advise of the death of Master Warrant Officer Mahlon Gregory “Greg” Casselman, CD (Ret’d) on 9 March 2020 in Ottawa ON at age 80 years. 

Greg was born in Cape Tormentine NB into an Engineer family where his father was a Warrant Officer Class One. He joined the Royal Canadian Engineers in 1960 and trained as a Field Engineer at the Royal Canadian School of Military Engineering in Chilliwack BC. Greg was posted to the Army Survey Establishment (ASE) in Ottawa in January 1961 directly from completing his qualification as a Group 1 Field Engineer and became a Surveyor. 

Greg’s first field job with ASE was the Belleville survey. He moved next into the Compilation Division where he worked on a number of different stereo plotters as well as on orthophoto production and aerotriangulation. In spite of his photogrammetry experience, he always seemed to return to the field.  Some of his major projects were Pemberton Meadows, Cambridge Bay, Wainwright, Victoria, Arctic 71 and OP BOUGUER - the final phase of a gravity survey in northern Canada. His experience made him eminently qualified to be seconded to the Canadian International Development Agency (CIDA) in 1975 for two years for duties as an instructor at Kaduna Polytechnic in Nigeria. On his return to the unit he worked in Project Management Office (PMO) Quality Control, Training Development Division, Topographic Squadron, Compilation Division, as Squadron Sergeant Major of PMO, Standards and as Squadron Sergeant Major of Digital Production Squadron. Greg retired in 1995. 

You are invited to join the family at the St. Laurent Chapel of Hulse, Playfair 1200 Ogilvie Road (at Aviation Parkway), Saturday, 28 March after 12:00 noon. A Celebration of Greg's Life will be held in the chapel at 1:00 p.m with a reception to follow. In lieu of flowers, donations to the Heart Institute would be appreciated. Online condolences can be sent to the funeral home. ^{khMar2020}