My Hess family originally came form Pipestone, MN. I am interested in finding some information in these names

Conrad Hess father b. 1840 Germany d. 1917 Bellingham, WA.
Son's
Peter Hess b. 1867 Germany d. 1919 Bellingham, WA.
Charlie Hess b. 1875 Germany d. unknown
Conrad Hess b. 1878 Germany d. unknown
John Hess b. 1880 Illinois d. 1907 Bellingham, WA.

John had a son Howard b. 1905 d. 1918 Bellingham, WA

I don't know the name of John's wife.

Thank you for any help.