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Francis Pettijohn papers
Francis John Pettijohn (1904-1999) was an American geologist.This collection consists of research materials and notes from 1929 through 1951. This collection is unprocessed.
Francis John Pettijohn (1904-1999) was an American geologist.This collection consists of research materials and notes from 1929 through 1951. This collection is unprocessed.