Memorial and biographical record of ... South Dakota published by G. A. Ogle & Co., Chicago, 1899 Biography of Samuel W Sedgwick (Sedgwick #53596), grandson of Gad Sedgwick The original FTP location is here History of Dakota Territory, Vol. V by George W. Kingsbury, 1915 Biography of Ernest Mason Sedgwick (Sedgwick #535961), son of Samuel W Sedgwick The original FTP location is here History of South Dakota, Vol. II by Doane Robinson, 1904 A section about John W Sedgwick, son of Joseph The original FTP location is here Portrait Biographical Album of Peoria, Illinois Biographical Publishing Company, 1890 A section about James Hadley Sedgwick, son of Samuel, grandson of Elijah Old Kent: the Eastern Shore of Maryland John P. Des Forges, Baltimore 1876 Genealogy of Maryland's first governor, Thoms Johnson, son of Dorcas Sedwick available at LDS FHC Los Angeles, also online at GenealogyLibrary.com