Who are the songwriters of je suis encore loin by Esther ofarim?

T. Tillman and F. Gérald are the author and composer. Not sure who is which.

From Esther Ofarim's eponymous 1965 album (Philips P 48.131 L France/Canada):

Je suis encore loin (900 miles from my home)

(T. Tillman/F. Gérald)