Question: Do both Gary Braver and Granger K. Costikyan have Turkish roots?
Sentence (from "Granger K. Costikyan"): His father who was from Merzifon in the Sivas Vilayet of the Ottoman Empire (present-day Turkey) had immigrated from Constantinople in 1884, and organised the successful import firm, Costikyan Freres (later known as Kent-Costikyan, Inc.) which still exists and specializes in oriental carpets.
Relevant evidence: Yes