On my mother's side, I am descended from the Piotrkow/Polichno/Meszcze Sommerfeld's. They are related to the ones in Lodz. My mother is Lydia S., grandfather was Hugo S., great grandfather Leopold S., gg grandfather Josef S.(b. Sept 19, 1818, m. second time to Anna Susan SCHILLBERG on Jan 21, 1850), ggg grandfather Michael SOMMERFELD (born late 1700's, and probably within 70 miles of Posen/Pozen, m. to Eleanor SCHMALTZ). Need info about Michael's fitting the description. Brothers to Michael may have included Andreas, Wilhelm, Johann, Jakob, and Christian. Possible sister is Kristine.