I am researching the following surnames: Kowalski, Piotrowska and Svekhovskaya. My father was born in Jacochow a small village near Warsaw in 1916. He has three brothers and one sister. His father Wladyslaw was born in 1887 possibly near Lipste. My grandmother Antonina Piotrowska was born in 1889 and died in 1924 or 1925 in Sadkowcie, located near the city of Skierniewice. My great grandfather Stanislaw Kowalski was born around 1861 and his wife Julianna Svekhovskaya was born around 1859. I would be glad to hear from anyone researching these surnames. Sincerely John Kowalski