General Motors TDH-4521 (HSR #801-812, 821-835, 841-852, 861-872)

General Motors constructed 51 TDH-4521s (Transit bus, Diesel engine, Hydraulic transmission, 45 passenger, model #21) for the HSR in four batches, between 1969 and 1972.

HSR Number	Delivered
801-812	1969
821-835	1970
841-852	1971
861-872	1972

HSR 868 was sold to Brantford Transit in 1992 and was renumbered 9725.

Some of the dates for these photos are unknown, and the locations are often just a guess. If you know either date or location, email me!

(All photos © Tom Luton, except where noted)

HSR #803 in Sanford Yard, date unknown. (Photo by Bob Hussey, used with permission. From Esbdave's Fotki Page)

HSR #806 and 810 in Sanford Yard, date unknown. (Photo by Bernie Drouillard, from the Dave Colton collection, used with permission. From Esbdave's Fotki Page)

HSR #786 and HSR #807 on Reid north of Queenston, May 1974.

HSR #807 and HSR #786 on Reid north of Queenston, May 1974. (Photo by Mitchell Libby, used with permission.)

HSR #810 in Sanford Yard, date unknown. (Photo by Bob Hussey, used with permission. From Esbdave's Fotki Page)

HSR #822 in Sanford Yard, date unknown. (Photo by Bob Hussey, used with permission. From Esbdave's Fotki Page)

HSR #824 heading south on James St, just north of Main, date unknown. (Photo by Bob Hussey, used with permission. From Esbdave's Fotki Page)

HSR 830 at the old Burlington Bus Terminal on John St, date unknown.

HSR #830 at the old Burlington Bus Terminal on John St between James & Pine, date unknown. (Photo by Bob Hussey, used with permission. From Esbdave's Fotki Page)

HSR #835 at McMaster University, date unknown. (Photo by Bob Hussey, used with permission. From Esbdave's Fotki Page)

HSR #845 in Sanford Yard, date unknown. (Photo by Bob Hussey, used with permission. From Esbdave's Fotki Page)

HSR #847 on King St East, west of John, date unknown. (Photo by Bob Hussey, used with permission. From Esbdave's Fotki Page)

HSR #850 in Sanford Yard in the early 1970s. (Photo by Bob Hussey, used with permission. From Esbdave's Fotki Page)

HSR #861 at King St W & Miller's Lane in Dundas, September 1976. (Photo courtesy of the Hamilton Public Library, Local History & Archives, used with permission)

HSR #867 at Main St West and MacNab, date unknown. (Photo by Bob Hussey, used with permission. From Esbdave's Fotki Page)

HSR #869 on John St South approaching Main, date unknown. (Photo by Bob Hussey, used with permission. From Esbdave's Fotki Page)