Donald McKay | |
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| Born | September 4, 1810 Jordan Falls, Shelburne County, Colony of Nova Scotia |
| Died | September 20, 1880 (aged 70) |
| Occupation | Ship Designer |
| Known for | Flying Cloud |
| Spouse(s) | Albenia Boole (married 1833–1848, until her death) and Mary Cressy Litchfield (m.1850) |
Donald McKay (September 4, 1810 – September 20, 1880) was a Nova Scotian-born American designer and builder of sailing ships, famed for his record-setting extreme clippers.