Am I right to assume those are Assyrian last names? My grandfathers family came from Urmia when it was still Persia. My g-grandfather Babajan settled in Chicago. Do you have any records that show any family in Chicago? As far as the name Babajan goes, i've heard two things. 1: Baba was a family last name that some took as first names. 2. Baba meant "daddy" and jan refers to "dear". During WW1 Assyrians fled from Urmia due to the genocide and religious reprocussions. They went to Russia where they also named a community/town there Urmia. The name you referred to as Sergius...could it have originally been Sargis. The cemetery where my g-grandfather is has grave stones with the Sargis last name. As far as Tay Hattam goes, could they have been doing Missionary work in Urmia?