My grandfather's name was Peter Luka b 7/31/1896 d 10/1957. His father was William b 7/1858 and mother Mary b 9/1861 (they were married in 1885 in Chicago). They lived in Chicago on Troy in the 1900 census - his siblings were Nettie b 2/1886, John b 1/1890, Frank b 3/1892. In the same house number lived Peter Luka b 6/1861, wife Antonia b12/1886 and daughter Mary b 8/1898. [I'm not sure if Peter b 1861 and William b 1858 are brothers but I figure they are related since they all lived in the same house on the census.] In 1910 census they lived on South Sacramento Avenue. In the 1920 I found my mother's cousins father* living on Troy - head John Luka b 1873, wife Mary b 1875, children Mary b 1898, Ulasta b 1901, Walter b 1905 & Casimir* b 1907. If you have any information, please let me know.