Karolina Larsen Koussno

I am trying to find information on a Karolina Larsen Kousmo she was born in the year of 1890 in Feb on a farm in Bergan. I know she worked to earn her money to come to the U.S She had a son William Williamsen who went to Norway to live with family there. He became a owner of the family farm. This I know because some family came from Norway when they wanted to sell part of the farm and my uncle had to sign papers for them to sell. I know she married Martin Williamsen in 1907 in Brooklyn Then later married Peder Jensen Sandvik in 1925 in Broolkyn. She had two son's Martin and William with her first husband and two son's Arthur and Edward and a daughter Lillian with her second husband. Thank you Vivian