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In page Leo Ryan:

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Ryan was born in Lincoln, Nebraska.[1] During his early life his family moved frequently, through Illinois, Florida, New York, Wisconsin, and Massachusetts. Ryan graduated from Campion Jesuit High School in Prairie du Chien, Wisconsin, in 1943.[2][3] He then received V-12 officer training at Bates College and served with the United States Navy from 1943 to 1946 as a submariner.[4]