One of my great-grandfathers was a Kvitek. Leona (Kvitek) Tvrdik put together "The Frank J Kvitek Genealogy 1806-1986" back in 1986.I have found it very useful in filling in some blanks.The Kviteks I'm related to are from western Minnesota. The book is on file at the Pope County Historical Society Museum in Glenwood, Minnesota. There are a lot of Kviteks still in Minnesota.
If you're interested in contacting Leona, I could snail mail you her address.I will not post it.