> When I look at your lInk, the transliteration says SISSEL but the Hebrew letters there would sound more like ZEESIL.  That might be an option to look for. 

> Reba Harris Solomon

> New York, USA

it is indeed a zayin. It is transliterated to Sissel because it is a German transliteration, not an English transliteration, and in such a situation a German S is pronounced like an English Z.