Just starting my research so I don't really have any information especially when it comes to researching in Poland. I basically only have for when my surnames were already in the US and haven't been able to find immigration info yet to know where in Poland they came from orginally.
Drzewiecki: Jacob Drzewiecki (?-?) married Josephine Nowkowski (?-?)
Children: Joseph 1873 (Poland/Germany) - 1944 (Illinois)
Frank 1888 (Illinois) – ?
Mary 1892 (Illinois) - ?
Pauline 1894 (Illinois) - 1957 (Illinois)
Ignatius 1898 (Illinois) - ?
Jacobs Mother: (per 1900 US Census) Maggie born 1816 in Poland/Germany
Arrival in United States (per 1900 US Census): 1887
Derengowski: Marcy or Matthew Derengowski married Anna Marganski
Children: Mary Ann 1856 (Bromberg) - 1931 (Illinois)
Walenty 1864 (Bromberg) - 1919 (Illinois)
Walenty married Anastazia Mienkowska (1865 - 1888/90) in Illinois in 1886
Children: Josephine 1886 (Illinois)
Frank R 1888 (Illinois)
married Mary Rydwelska (1866 - 1930) in Illinois in 1891