My Great Grandmother was Louise or Louisa Pyetski who married Emil Louis Doering. Emil went by Louis Doering. There are various spellings and Doring is one of them. In one particular census year the census person spelled their last name as Dorring in the 1900 Census. My Great Grandparents appear to have married in the USA. They had the following children, Milton L. Doering who my Great Grandfather adopted and was from a previous marriage for Louise. The children Louis and Louise or Louisa had together are Emil L. Doering, Harry O. Doering, & Louise Margaret Doering. Milton was born in Kansas and the remaining children were born in Kansas City, Missouri.