Now I can write to the city of Kruzberg (although I've found that the Czech spelling is actually Kruzberk, and the Russian spelling is Krutsenberg!) in hopes of obtaining official information about Great-Great Grandfather Matthew, Great-Grandfather Jan Sr. and Grandfather's older brother Joseph Zvolanek.
Kruzberk, CZ with a latitude of 49.83 (49° 49' = 60 N) and a longitude of 17.68 (17° 40' 60 E)
Birthplace of John Zvolanek's father and 2 older brothers, Kruzberk is east of Stare Ransko - where John Zvolanek lived before coming to the United States.
7/28/2011 UPDATE:
Serhiy of the Ukraine is mistaken - Great-Grandfather's birthplace is indeed Krucemburk! See the full blog post of 7/28/2011. As I said before, it's always good to verify EVERYTHING more than once!