Franz & Louis Welzenbach appear to be brothers.(In 1855 Utica New York Census listed as boarders in a house). Franz not listed in 1865 census of Utica NY. Louis Welzenbach married Irish girl named Mary. Children: Louis Welzenbach (1856-7) Maryanne Welzenbach(1859-60) Louis Sr. died in the year of the 1865 census at age of 38. Trying to connect these two Welzenbach's to Frank Welzenbach of Utica NY,father of Joseph,Christian & Margaret. Joseph in turn was father to John, Joseph Micheal, and Catharine before he died at age 38.