I'm researching for a friend and would appreciate any help, hints or otherwise on ancestors of the following.

Mary Elizabeth Kurth was born 09 March 1859 in Elk Grove, Cook Co., Illinois and died 26 January 1923
in St. Paul, Ramsey Co., Minnesota. She married Julies Fred Wille on 06 November 1879 in Zion Church, New Trier, Dakota Co., Minnesota.

Her parents were Henry Kurth and Catherine Elizabeth Wehnes, both of whom came from Germany. He was born about 1829; she, about 1823. They married 06 December 1848 in Germany. He died 02 April 1889 in Lincoln Co., Illinois. She died in 1907.

Julius Fred Wille was born 09 February 1859 in Hastings, Dakota Co., Minnesota and died 06 January
1930 in Cokato, Wright Co., Minnesota. He was the son of Charles Carl Wille and Caroline Lena
Heinemeier.

I have the above information from a book on the Wille family. Any help is appreciated.