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

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.

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.

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.

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

HSR 822 in Sanford Yard.

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.

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.

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

HSR 845 in Sanford Yard.

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

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.

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.

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.

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

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