You asked about being related to Leroy, Clark and their brothers. My grandfather, Lorentz W. Pederson (1847-1927)was born on the same Inderoy farm as your grandfather, Ole. On the 1865 Census (
www.digitalarkivet.uib.no/cgi-win/)for Nord Trondelag, Inderoen Parish, Lorentz and his mother and siblings are on the nearby Skogseth farm. Lorentz came to Am. in 1866. He moved to Halstad, MN in 1901. Ole, being a Kvistad, came to Lorentz's place, and lived for a while in the Halstad area. I have the Halstad Centennial book and can copy the Kvistad photos and biographies from that if you wil send me an address.
Larry Thompson, Hazel Run, MN