Let me make some assumptions. George Traiche although possible but not likely was Serbian. Definitely Traiche is typical Macedonian name or surname (with some exceptions). That he was born is Sarajevo in not matching my assumption. Spasia was not Greek for sure and sticking with the Macedonian community in the US self explanatory tells you what was her background if not that would never happen. The surname Taijevic may not be the original spelling since it is unusual for Serbians and Macedonians unless it was Trajcevic which is closer to Macedonian. The ending “ic” does not tell the nationality, all Macedonians in Vardar Macedonia had that ending on the surnames.