| 1 | Institution: | Western Reserve Historical Society | Requires cookie* |
| Title: | George and Margaret Knowles Papers | ||
| Dates: | 1870-1974 | ||
| Subjects: | Knowles, George H. 1909-1965. | Knowles, Margaret Keal. | United States. Army Air Forces -- Diaries. | World War, 1939-1945 -- Personal narratives, American. | World War, 1939-1945 -- Economic aspects -- United States. | Soldiers -- United States -- Diaries. | Patents -- United States. | Evidence, Expert -- United States. | Patent and government-developed inventions -- United States. | ||
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