did the sophia wisniewski you are looking for die 4-10-1927 we also have another wisniewski who died 4-4-1927 a baby. does this help. we also have a charles. there are a lot of wisniewski with the same names. is the charles also kazimierz? sophia and charles are on our papers but don't know where they belong. as we have another charles we are trying to fellow.good luck as we have been trying to separate all of them into the right familys.is the charles wisniewski you are looking for charles j. and was he in world war one?