Mike
I can't say I have seen that spelling before but then there are 4 or 5 popular spellings that I have seen. I am not directly related to the Soike family but I am through two second marriages. I do have some census records from the 1881 and 1891 that offer some information. I also recall from the census records another family that was very close to Soike but it was clear it was not the same family. Do you have a time line or other details.
Brian