John Adolphus Bernard Dahlgren, b. 13 Nov 1809 in Philadelphia, Philadelphia County, Pennsylvania, d. 12 Jul 1870 in Washington, District of Columbia, son of Bernhard Ullrik Dahlgren & Martha Rowan. He married Mary Clement Bunker (1st wife) in 1839 in Philadelphia, Philadelphia County, Pennsylvania. He married Sarah Madeleine Vinton (2nd wife) on August 2, 1865.
John Vinton Dahlgren, b. 22 Apr 1868 in Valparaíso, Chile, d. 11 Aug 1899 in Colorado Springs, El Paso County, Colorado, son of John Adolphus Bernard Dahlgren & Sarah Madeleine Vinton (2nd wife). He married Elizabeth Drexel on June 29, 1889.