My great-great-great-grandfather's name was Michael Chmiel, and he had two daughters that I know of, Constance Pietrzak born circa 1859 (my direct ancestor) and Frances Szarzynski born circa 1856.
It was noted on Constance's death certificate that she was born in Poznan, Prussia (although Poznan commonly referred to the whole region of Posen).
Any information about these individuals would be extremely helpful!