I am looking for more info on Lars Knudtson Tysdal born in Norway in Svadberg in 1809 and died in South Dakota in 1915. His original name was Knudtson,but he took the name of the Tysdal farm in Rogaland in Norway. I need more details. Where is the farm. When did he emigrate to US. Siblings, parents,spouse. Anything would be appreciated.