Does anyone have a marriage record for Grace Buck and Noah Hardin?

Grace Buck born approximately 1881 in KY.  Noah Hardin born in KY they married within 10 yrs of 1900.  I can not find any information on this subject.  Grace gets a divorce in Monmouth, IL I think between 1921 and 1930.  Moves to Southern California and is listed on the 1930 US Census with Chester K Southern.  I am not sure that she married him but her last name changed to Southern.  Can not find any divorce record except 1930 Census shows Noah Divorced.  Can't find marriage record for Grace and Chester either.  She died in Bakersfield,  CA.  Noah died in KY and Chester was murdered in Oroville, CA.  I would appreciate some help with this "Brick Wall".   Thank You!@