Ralph Benjamin Pratt | |
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| Born | 9 August 1872 London, England |
| Died | 14 March 1950 (aged 77) Saint Boniface, Winnipeg, Manitoba |
| Occupation | Architect |
Ralph Benjamin Pratt (9 August 1872 – 14 March 1950) was a Canadian architect known for his work as a staff architect for the Canadian Pacific Railway and the Canadian Northern Railway, and for his work as a member of the firm Pratt and Ross with partner architect Donald Aynsley Ross.