I am trying to locate information on my wife's great grand parents, Andrew Kapp and Sophia Margaret Stegmier Kapp. Andrew was born April 15, 1827 in Wurtenberg, Germany. He came to America in 1847, lived in Mt. Vernon, N.Y. Sophia Stegmier was born in Baden, Germany. Andrew and Sophia were married in Mt. Vernon, N.Y. June 13, 1852. Would like to know their parents names and names of their siblings. Andrew had a brother named Jacob and may have had a sister named Kate.