The link below goes to a digitized version of a short book about the history of The First Congregational Church in Dundee, IL. The book discusses the history of the church from it's founding in 1841 to 1951. It was written by Mrs. Edmund Haeger (Betty Mills Haeger), the church historian.
1841-1951 A Century and a Decade of The First Congregational Church, Dundee, Illinois by Mrs. Edmund Haeger.