New England Historical and Genealogical Register, vol. 60 (1906), p. 114: 'In 1865 he became librarian and chief assistant of Hubart [sic] H. Bancroft ... In this capacity Mr. Oak served eighteen years.' Lewiston Sun-Journal, 30 Dec 1899, p. 24, 'Sons and Daughters of Maine' (Newspapers.com image 828086455): 'was in the employ of Mr. Bancroft eighteen years.'

Citation only

About this record

Citation imported from the family tree. See the person's evidence notes for any later review. How sure is each statement?