Thanks Gery,
Yes please ask your father. Thank you for the link. I found Caroline's nephew Johan Hagman in the "Index to First Naturalization Records for Rawlins County". He apparently applied for citizenship February 17, 1904 in this county. Do you know how to get a copy of the original application? Perhaps he resided at Caroline's home? I sent an e-mail to the woman who created that webbpage also.
/Ulrika