Hello, Mr. Rose. Have you found your Gilbertsons in Jackson County Wisconsin, yet? My grandfather, John Gilbertson, was born to Gilbert and Christina Gilbertson in ...the 1870s? They had a farm near Black River Falls. Gilbertson is a common name there. By the way, I noticed your address, and it suggests you are not the Bob Rose who met my husband while kayaking in the northern Virginia/Maryland area. ...Are you??