See an earlier post from me on John Vacher. Is it possible the variations on the name relate to your John?Around 1875 my ggrandfather came to America to stay first with an uncle, said to be the "Great Chicago Symphony Conductor", John Vacher.Is your family musically talented? Many of the descendants of my ggrandfather have innate musical ability. One of my father's aunts could play anything she ever heard on the piano, I heard her do it.I, and my children, my father and some of his sibs, while not that talented, can pick out any tune, my son is that talented.My ggrandfather took the name Walker, given to him on immigration. The family story was that it was Wacker. All are variations on the same pronunciation.