Lelke family search 1. Open

Trying to find information on Adolf Lelke and his children. Adolf we understand was born on the 13th March 1870 in Leg Piekarski and his children Ludwig, Leokadia and Wilhelm Lelke were all born in Sobotka located in the Gmina Dabie within Koto county. Wilhelm is my wife’s father who is deceased. We have no information on Wilhelm’s parents except as provided. A birth certificate for Wilhelm Lelke born on the 10th September 1921 would be very helpful to identify more information about his parents.