What was Garrison Keillor's background what was that made him what he is today. Garrison Keillor was born on Augest 7th, 1914, in Anoka Minnesota. Garrison Keillor had a family of eight, his mom, Grace Ruth, and his father, John Philip Keillor, he was one out of six children. Garrison Keillor went to Anoka for school, in 1966 Garrison Keillor got a bachelor degree in english. Garrison Keillor is part of three cultures, Welsh, German, and English. On July, 1974 he started a Prairie Home Companion, it was at St. Paul Minnesota.