De acordo com esta história - não, suas tentativas (tanto com Khan quanto com Soong) não atraíram a atenção pretendida:
Vale a pena notar que, de acordo com Marc Cushman, "These Are the Voyages: Season One" - foi de fato Roddenberry quem mudou o nome do personagem para Khan Noonien Singh do nome original escrito por Gene Coon. Não há, no entanto, nenhum detalhe no trabalho de Cushman quanto à origem do nome.Back in the day, when Roddenberry was flying his combat missions with the 394th Bomber Squadron, 5th Bomber Group, 13th Air Force in a B-17 Flying Fortress, he met a Chinese pilot who became his friend. After the war, he lost contact with the man, named Kim Noonien Singh.
Roddenberry is reported to have named the character of Khan Noonien Singh after his old war buddy hoping that the original would notice and try to contact him again.
Sadly, the character of Khan failed to gain the attention of Roddenberry’s former comrade.
Roddenberry tried again to hail down the Chinese pilot he once knew in the much later series Star Trek: The Next Generation, which began in 1987...this time, Roddenberry had the “father” of Data (the ship’s android crew member) named Dr. Noonien Soong. Once again, Roddenberry’s noble pre-Facebook and Google attempts to find his long-lost friend failed.
Além disso, há outro Singh no TOS - o do tenente Singh em "The Changeling"
Parece que, pelo menos, uma das origens originais desta história é este livro