In 1903 my Grandfather immigrated to the USA and changed his name (according to family lore)He took his mothers name (Kalabich) . The onloy tie to his fathers family that I have is a letter from his 1st cousin (we believe) in the mid 1950's. His cousin's name is Lubo Poleksich and he was living in Belgrade at the time of the letter. Any assistance would be greatly appreciated.