Question: Do both Gary Braver and Granger K. Costikyan have Turkish roots?

Context articles: Granger K. Costikyan
Turks in Ireland
Turks in Saudi Arabia
Mukhtar Mukhtarov
Gary Braver
Murder of Michèle Kiesewetter
Turks in Kuwait
Turks in Turkmenistan
Turks in Moldova
Turks in Liechtenstein

Granger Kent Costikyan (29 March 1907 – 10 March 1998) was an Armenian-American banker.
 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.
 Granger was educated at Hotchkiss School, graduating in 1925, and Yale University, graduating in 1929.
 He was a member of the Skull and Bones secret society.
Turks in Ireland (Turkish: "İrlanda Türkleri" , Irish: "Turcaigh in Éirinn" ) are Turkish people who live in Ireland having been born elsewhere, or are Irish-born, but have Turkish roots.
 By Turkish roots, this could mean roots linking back to Turkey, the island of Cyprus or the communities of the Turkish diaspora.
Turks in Saudi Arabia (Turkish: "" ) are either Turkish people who live in Saudi Arabia even though having been born outside Saudi Arabia, or are Saudi Arabian-born, but have Turkish roots.
 By Turkish roots, this could mean roots linking back to Turkey, the island of Cyprus or the communities of the Turkish diaspora.
Mukhtar Badirkhanovich Mukhtarov (Kazakh: Мұхтар Бадірханұлы Мұхтаров ; born 6 January 1986 in Lenkoran) is a Kazakh footballer of Azeri and Turkish roots who plays as a right back for FC Ordabasy in the Kazakhstan Premier League.
Gary Goshgarian known by his pen name Gary Braver is an English professor at Northeastern University (Boston), United States, where he teaches courses in science fiction, modern bestsellers, horror fiction, and fiction writing.
Michèle Kiesewetter (10 October 1984 in Oberweißbach – 25 April 2007 in Heilbronn), a German police officer, was killed by neo-Nazi terrorists on 25 April 2007 in Heilbronn, Germany.
 Her colleague was shot in the head and seriously wounded in the same incident.
 The perpetrators have also been implicated with the murders of nine other people, most with Turkish roots, between 2000 and 2006, the so-called Bosphorus murder series.
Turks in Kuwait (Turkish: "Kuveyt Türkleri" ) are Kuwaiti people of Turkish ancestry and foreign Turkish people who live in Kuwait.
 By Turkish roots, this could mean roots linking back to Turkey, the island of Cyprus or the communities of the Turkish diaspora.
Turks in Turkmenistan are either Turkish people who live in Turkmenistan even though having been born outside Turkmenistan, or are Turkmenistan-born, but have Turkish roots.
 By Turkish roots, this could mean roots linking back to Turkey, or in neighbouring countries once part of the Ottoman Empire that still have a population whose language is Turkish or who claims a Turkish identity or cultural heritage.
Turks in Moldova are Turkish people who live in Moldova even though having been born outside Moldova, or are Moldovan-born, but have Turkish roots.
 By Turkish roots, this could mean roots linking back to Turkey, the island of Cyprus or the communities of the Turkish diaspora.
Turks in Liechtenstein (German: "Türken in Liechtenstein" Turkish: "Lihtenştayn Türkleri" ) consist of both Turkish people who live in Liechtenstein but were born elsewhere, as well as natives of Liechtenstein with Turkish roots (meaning origins in Turkey, the island of Cyprus, or communities of the Turkish diaspora).
 Presently, 894 Turkish citizens live in Liechtenstein (this does not include Turks with Liechtensteinian nationality), accounting for 3% of the total population of the country.
 Turks are the fifth-largest group of foreigners in Liechtenstein, behind Swiss, Austrians, Italians, and Germans.
 296 Turkish citizens work in Liechtenstein.