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

Several of these buses ended up sold to other companies in the mid-late 1980 and early 90s

HSR Number	New Owner & Number
802	Double Deck Tours #?
806	Sookram Bus Lines (Azilda, Ont) #?
826	Marjo Tours #?
868	Brantford Transit #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 at Gore Park, May 5 1972. (Photo by Paul A. Bateson, 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 Gore Park, May 5 1972. (Photo by Paul A. Bateson, used with permission)

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)