Launched on May 21, 1866, it initially ran a daily and evening version and was a pro-British voice against increasing American influence a year before Confederation.
The paper was never profitable and debt led to the folding of the morning edition in May 1872. The paper's debt woes continued; unable to obtain financial support from the Conservative elite in Toronto, the broadsheet folded in June 1872.
Robertson returned to The Globe and later established the successor to the Telegraph, Toronto Telegram, in 1876.
Other conservative papers before and after the Telegraph:
- Torontoist (27 August 2016). "Historicist: The Telegraph and the Early Career of John Ross Robertson". Retrieved 15 April 2018.
- "Toronto newspapers of the past (and present)". Retrieved 15 April 2018.