Pederson (Roe) family name

This information was listed in a forum post to me last year on my husbands family. I am having trouble finding any information on his great grandfathers siblings, when the name was Pederson before it was changed to Roe. The information I received: Engebret Pederson Rød (I. Pedersen, 21) perhaps son of Peder Ingebretsen Røe & Kari Nilsdatter b. in Siljan, Te April 26, 1823. Emigrated from Siljan, Te to the Pine Lake Settlement, Waukesha county, WI. Died March 9, 1872. Married, August 17, 1849 Karen Simonsdatter Sølverud, b. 1822 d. 1913. Children Peter, bp Sept. 20, 1851, Maren Christine bp Dec. 18, 1852 d. Nov 30, 1939, Simon, Jacob, bp May 24, 1856, Carl bp Dec 17, 1857, Jonas bp Jul 15, 1860. In addition a probable sister to Engebret is also identified on the Salvator: Ingeborg Pedersdatter ( I. Pedersen, 16, fe.)Rød b. Siljan Telemark Sept 5, 1828 d. Scandinavia, WI Sept 1887, supposed to have married Christian Hansen. I find the census in ancestry.com, but I am unable to find anymore informaton on Peters siblings. I would appreciate any information anybody can provide Thanks Janice