WALL, Dr. John HallettAugust 10, 1924 – St. Stephen, NBApril 28, 2015 – Calgary, ABJohn Wall of Calgary passed away on Tuesday, April 28, 2015 at the age of 90 years. John was raised in St. Stephen, NB and completed a B.Sc. in Geology at UNB. John's career began with Imperial Oil just prior to the Leduc oil discovery. While there he continued his education earning his M.Sc. at U of A. John later completed his PH.D at the University of Missouri in 1958. He then worked as a respected research geologist, first at the Alberta Research Council then the Geological Survey of Canada. Although he officially retired in 1992, he continued working with emeritus status and then as a volunteer for as long as his health would permit. John is survived by his son James. He was predeceased by his beloved wife of 53 years, Margery on July 23, 2014. He was also predeceased by his sister, Marian and brother Gilbert. Funeral Services will be held at McINNIS & HOLLOWAY (Chapel of the Bells, 2720 Centre Street North) on Wednesday, May 13, 2015 at 2:30 p.m. Graveside Service to follow at Queen's Park Cemetery. Condolences may be forwarded through www.mcinnisandholloway.com. If friends so desire, in lieu of flowers, memorial tributes in John's honour may be made directly to the Alzheimer Society of Calgary www.alzheimercalgary.ca. In living memory of John Wall, a tree will be planted at Fish Creek Provincial Park.