Theodore James Raymond Cyr, of Abbotsford, BC, passed away on August 17, 2019, at the age of 78 years, from prostate cancer. He was born in Prince Rupert, BC, on June 15, 1941, to the late Joseph Phillip Raymond Regis (“Raymond”) Cyr of Mission, BC, and the late Josephine Alemede Mildred Edith (“Mildred”) Cyr (née Stokes) of Goodwater, SK. Dr. Cyr attended UBC for his BSc, MSc, and PhD in chemistry. He completed post‑doctoral fellowships in Kyoto, Japan, and Nottingham, UK, and taught physical chemistry at the University of Montreal. He worked for CANMET and Imperial Oil. In 1978 he joined AOSTRA (Alberta Oil Sands Technology and Research Authority) as research manager in the grants program, co‑inventing numerous patents related to oil extraction and recovery. He obtained a PEng from the University of Alberta in 1988. In 2000 he moved to the Alberta Department of Energy until his retirement in 2013. He is survived by his brother, Dr. Wayne Cyr of Abbotsford, children Reiko and Gregory, and his former wife, Dr. Natsuko Cyr.