I am descended from a marriage between a Kolar and Zofka in Cleveland ca. 1887. I know Kolar came from a town called Strakonice in Bohemia (Czech Republic). Figured I would post as your towns bear resemblance to mine.
Her maiden name was Zofka (Zofkova). Her parents were probably John and Barbara Grejcarek, but an Elzbieta Zofka (1830-1905) lived with them. I believe she might be a step mother. I believe Mary came over in 1885. She would have been about 18. There was a Zofka family in Cleveland ca. 1890-1910 who lived within a quarter mile from the house my family settled in. Might be related, maybe an uncle.
Hope this helps in some way.