Andrew and Aslack Knutson

I have two different Great Great Great Grandfathers both came with the last name Knutson and both from Kvietstad. First is Andrew Knutson born Sept. 23 1832 in Kvietstad married to Margarat Halvorson. Margaret was born in 1832. Their children were Knut A Knutson born June 24th 1852, Carrie Knutson, Julia Knutson born Sept 14 1860, Mary Knutson, and Margaret Knutson. The second is Aslack Knutson born May 17 1828 in Kvietstad and married to Hannah Diana Hendrickson. She was from Porugard. Their children were Guro Knutson born Sept 6 1853 in Kvietstad, Henry Knutson, Knudt Knutson, John Knutson, and Anna Knutson. My first question is whether or not Andrew and Aslack were related. Second is just looking for any additional information.