The Bonnycastle family of Canada:

• Sir Richard Henry Bonnycastle (1791-1847), British soldier
• Henry William John Bonnycastle (1813-1888), lawyer, militiaman, farmer, councillor, artist
• Angus Bonnycastle (1873-1941), lawyer, politician, judge
• Richard H. G. Bonnycastle (1903-1968), lawyer, fur trader, adventurer, book publisher who owned Harlequin Enterprises
• Richard A. N. Bonnycastle (b. 1934), book publisher, investor, conservationist, racehorse owner/breeder

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