Mary Beacock Fryer (1929–2017) was a well-known expert on Upper Canadian history. She wrote a trilogy on the Simcoe family: Elizabeth Posthuma Simcoe: A Biography, Our Young Soldier: Lieutenant Francis Simcoe, 6 June 1791-6 April 1812, and John Graves Simcoe: 1752-1806, A Biography. Among Fryer's other books are Escape, Beginning Again, and Buckskin Pimpernel.