Good chance it is. My great great grandparents came over from Czechoslovakia, not sure when. Frantisek(Frank) was born in 1827 Katerina in1835. Son Frank in 1877. Daughter, Katherine (my great grandmother) in 1863. They had to have been in US in late 1800's as son Frank had a daughter born in Dec 1898 who died in Feb 1899. Think your husbands family could be a branch of this group. Great great grandparents & son Frank, his wife & 4 children are buried in a small cemetery in Nebraska. Daughter Katherine, her husband & 4 children in another small Nebraska cemetery. The family stayed in this area.