Your GGGrandfather, Mathias Menchen and Therese Wintzweiller were married the 31 August 1840 in Reichshoffen, Bas Rhin, France. Therese was born 11 April 1816 in the same town. I am looking at indexes only. If you live near a Family History Center you can order the film and get the record yourself. Microfilm # 0721905 for the marriage and microfilm # 0721901 for Therese's birth.
My ancestors are from the same town.
Good luck, Lynn Scarengos, Newsletter Editor Jefferson Genealogical Society