Found on the Zavoral genealogy website posted above - some information about other people with surname Zavoral who immigrated to Chicago:
Gustav (August) Zavoral was born 15 August 1881 in Litomysl (?), Czech Republic. He immigrated to the USA in 1901. SPOUSE: Marie Hering Married 15 May 1905 in Chicago, Cook, Illinois. He died March 1965. Marie was born 1885 in Czech Republic. Immigrated to Chicago 1886. CHILDREN: * lvia Zavoral born 1906 in Chicago * Lillie Zavoral born 1908 in Chicago * Charles Zavoral born 1909 in Chicago
Joseph Zavoral was born 1878 in Litomysl, Czech Republic. (see also Find a Grave) He immigrated to USA in 1900. Lived in Chicago, Cook, Illinois. SPOUSE: Katerina Domorazek Married 25 July 1905 in Chicago. Katerina was born 1884 in the Czech Republic. Immigrated 1901. CHILDREN: * Joseph Zavoral born 1905 in Chicago * Marie Zavoral born 1907 in Chicago * Edward Zavoral born 16 March 1909 in Chicago. Died March 1976. Last Residence Plano, Kendall, Illinois.