Reposting what I said earlier...
I think that Zissel could be for both sexes, but I've only seen him on girls. More common boy forms would be Suskind,
Zusman, Sus...
Check here:
http://data.jewishgen.org/wconnect/wc.dll?jg~jgsearch~model~GNDB_GERM~SUS~GT~!1!!2!!3!~0~USRECORD1624
http://data.jewishgen.org/wconnect/wc.dll?jg~jgsearch~model~GNDB_GERM~ZUS~GT~!1!!2!!3!~0~USRECORD1560
I think it is a legitimate Jewish name, although it would be good for a boy to have a Hebrew name too. Example:
Shmuel Zissel.
I had never heard of
Zane as a Yiddish name, but I've just found that:
http://www.hebrewletters.com/item.cfm?itemid=3358
I hope it helps!
Claire (
Rahel Behira) :) :) :)