And thank you for the link to the christening! This gave me confirmation that Marie Carlson's full name was Karoline Marie. I have a reference to a marriage record for Nils Johansen and Karoline Carlson in New York in 1890. There was an earlier Norwegian archive entry on a census when she was as child - as Caroline M. Now I know I have the correct marriage record. I'm not sure why, but she chose to call herself only "Marie" after she emigrated, and "Marie" is on her gravestone in Greenwood Cemetary.