I just recently identified my distant relative as a "Chalone from Beneshof Mill" (that is how the family translated it). It took me a long time to figure out the corret spelling of her last name, but I am certain now having seen the correct spelling on one of her son's baptism records.
Her name was Josefa Czalaun. She married Joseph Polacek in Poland in 1844. Her children were born in Pisek, Bohemia betwee 1845 and 1852. She immigrated to the US in 1853 where she lived with her family in Central Missouri.
You mention that the archive of Trebon has information on the Czalauns. Where do I find this archive?