If anyone in your family was married in the western states, Brigham Young University hosts a index of those records. The index can be searched by bride or groom name. It lists the town or county of the marriage and the date. Other information such as the age at the time of the marriage and the place where the individuals lived before the marriage is sometimes included.
At the same site other early records from the western states are also available. Check it out!
http://abish.byui.edu/specialCollections/westernstates/search.cfm