The family member Charles Ingalls died at the age of 66. Here is all you want to know, and more!
Biography - A Short Wiki
Father of author Laura Ingalls Wilder who wrote the popular Little House on the Prairie book series. He helped organize and was an active member of the Congregational Church in De Smet, South Dakota.
He was married to Caroline Ingalls from 1860 to 1902 with whom he had daughter Laura.