Rønnaug Iversdatter Hammer left Norway 1870

Hello from Norway! I am looking after descendants in the USA after Rønnaug Iversdatter Hammer, born in 1805 at the Sylte farm in Kvikne, Norway. She married Tjøstel Hansen Hammer, and moved to Hammer in Lalm, Norway. They got six children. In 1870, August 12´th, Rønnaug left Norway to emigrate to America together with her son Jacob T. Hammer, her daughter in law, Ragnhild, their son Theodore (3 months old), Rønnaug`s daughter Ingeborg, and Ingeborg´s son Hans Christensen (5 or 6 years old). In the emigration book in Norway it says they were going to Mc Gregor. I have found at "Find a Grave" one grave of a man named Jacob Hammer in Washington. Does anyone know#347; anything more? Rønnaug was a cousin of my great great grandfather. I am so happy if someone knows anything more! Sorry about my bad spelling! Mari Sylte Ringstad, Brøttum, Norway