(1) John Camden Hotten, The Original Lists of Persons of Quality; Emigrants; Religious Exiles; Political Rebels; Serving Men Sold for a Term of Years; Apprentices; Children Stolen; Maidens Pressed; and Others Who Went from Great Britain to the American Plantations, 1600-1700 (1874; reprint, Baltimore: Genealogical Publishing Co., Inc., 1983), 291, quoting A Register of Persons About to Pass Into Foreign Parts, 1637.
(2) Barbara K. Nord, The Flagg Family in New England: The Ancestry of Dr. Henry Collins Flagg, 6.