I do not know anything about the specific person you are looking for but I might be of some help.You may find more information under the english version of the name.
My great grandfather name was Wolf Baer Scwajcer from Random Poland. We use the name Switzer and I found your post in googling the original name. Also Fishel is my fathers yiddish name and is a popular family name. The coincidences are a bit striking.
There is a web site switzer.ca that you may find some help.