Hugh A. Halliday (1940 - ) was born and educated in Manitoba. He holds a BA from the University of Manitoba (1961) and an MA from Carleton University (1965). In 1961 he joined the RCAF and was employed as a staff officer in the Air Historian Section and subsequently in the integrated Directorate of History, Department of National Defence.  In 1968, he left the forces to teach at Niagara College of Applied Arts and Technology in Welland, Ontario.  He joined the staff of the Canadian War Museum in 1974 and served in appointments including that of Curator of War Art (1976-1985). He retired from the museum in 1995.  

He is the author or compiler of several studies related to RCAF history and Canadian airmen bearing the following titles: Chronology of Canadian Military Aviation (1975), The Tumbling Sky (1978), 242 Squadron: The Canadian Years (1981), Woody: A Fighter Pilot's Album (1987) and Typhoon and Tempest: The Canadian Story (1992).  With Larry Milberry he co-wrote The Royal Canadian Air Force at War, 1939-1945 (1990), while with Brereton Greenhaus he wrote Canada’s Air Forces (1999).  

He is also the author of numerous articles on military subjects, Canadian war art, and shipwrecks. His books The Wreck of the Lady of the Lake and Other Stories From the Age of Sail was self-published in 1974.  More recently, Wreck! (1997) deals with Canada's worst railway accidents.  Murder Among Gentlemen (1999) covers the history of dueling in Canada. Not in the Face of the Enemy: Canadians Awarded the Air Force Cross and Air Force Medal, 1918-1966 (2000) deals with a variety of feats rewarded with these two decorations.  Another work: Valour Reconsidered: Studies of the Victoria Cross and Other Awards for Bravery (2006), dealt with questions as to how major gallantry awards are bestowed.

Halliday has been an active member of the National CAHS and Ottawa chapter since the mid-1960s.