Douglas Threlfell was the son of Albert Tudor Threlfell – always known as ‘Tim’ – who rode both on the Flat and over jumps, amassing a total of 137 wins under National Hunt rules prior to taking out a trainer’s licence in 1925.
Born in Malton, Yorkshire on December 28, 1917, Douglas rode eight winners as an amateur, then joined the professional ranks and added another five.
He gained his first success, aged 17, at Wetherby on October 25, 1935, when Mingled, owned and trained by his father, won the Linton Handicap Hurdle narrowly by a head. He added two more wins before the season ended, then scored five times in the 1936/37 campaign, including a double at Hexham on horses owned and trained by Bobby Renton, landing the Devil’s Water Selling Handicap Hurdle on Claude Duval and the Colonel John McKie Memorial Challenge Cup Handicap Hurdle on Littlethorpe.
He turned professional in Mauy 1937 and opened his account with a victory on the six-year-old Tetramoor in the Skeeby Hurdle at Catterick Bridge on November 20, 1937, beating Tacia Pearl, ridden by the good amateur Reg Tweedie (later to gain fame as the owner-trainer of dual Grand National runner-up Freddie) by three lengths.
Douglas had three more wins that season, and then a final victory at Wetherby on Easter Monday, April 10, 1939, when Eastcroft narrowly got the better of King Crow, the mount of Bill Kidney, to win the Wharfedale Selling Handicap Hurdle by a short head.
Douglas Threlfell died in June 1982, aged 64.
His winners were, in chronological order:
1. Mingled, Wetherby, October 25, 1935
2. Carmine, Wetherby, April 13, 1936
3. Glanton, Kelso, May 5, 1936
4. Middleton Hunt, Wetherby, November 5, 1936
5. Littlethorpe, Catterick Bridge, March 5, 1937
6. The Sanctuary, Rothbury, April 7, 1937
7. Claude Duval, Hexham, April 28, 1937
8. Littlethorpe, Hexham, April 28, 1937
9. Tetramoor, Catterick Bridge, November 20, 1937
10. Bayport, Leicester, January 10, 1938
11. Penny Farthing, Haydock Park, February 11, 1938
12. Hexham, Catterick Bridge, March 5, 1938
13, Eastcroft, Wetherby, April 10, 1939
Douglas Threlfell's first winner was Mingled at Wetherby, October 25, 1935
Douglas's final winner was Eastcroft at Wetherby, April 10, 1939