ROSENMILLER, David Porter, Jr., a Representative from Lancaster County; born, March 21, 1841 in Dayton, Montgomery County, Oh.; attended, Franklin and Marshall College; ensign, “U.S.S. Essex,” “U.S.S. Black Hawk,“ United States Navy (1862-1864, Civil War); commander, “S. S. Alexandria,” United States Navy (1864-1865, Civil War); attorney (1868-1901); elected to the Pennsylvania House of Representatives as a Republican in 1874 and 1875; not a candidate for reelection to the House (1876); elected, mayor, city of Lancaster (1884-1886); died, May 2, 1901 in Lancaster County, Pennsylvania.