This source is in its first recorded form. (ie: the original marriage record license)
[Sources & Evidence]
When writing to a relative for information, make specific requests. Don't ramble! Offer to share your information.
Have any other records been destroyed? Yes! In 1896 fire damaged the 1890 supplemental schedules of crime, mortality and pauperism and other special classes. Any remains were later destroyed by order of The Interior Department.
Use a good genealogical software package to maintain your records and your digital files.
It's very important to check maps. Boundaries change over time. Be sure the area where you think your ancestors resided is actually the area where they were.