I found that here name was Carolina Burgess in my grandfathers inventory = a list of all things and money they have when they died. And there she left some money to him after here inventory
About when she emigr.to USA,did I find it in a parish book over Sweden when I was at the library some days ago, but I forget to write down where, hm hm. Sorry
But I find just now in Family Search
some Carolina Burgess in Census US 1940 but there she was born 1884 it is the only Carolina I can find. Maybe her birth year has get wrong. She lives 1940 i Massachusetts, and was a wido maybe it is she. Yes her name is only Karolina Nilsson. She must have died 1941-1954 because my grandfather (died 1954)And at she was a wido can explain why my grandfather get money, so she have no husband and children. Yes she is a difficult person to search after.