Dear Mr. Kelly,
Thank you for posting your request on History Hub!
We suggest that you review NARA’s Resources for Genealogists, as well as the History Hub Blog titled Suggestions and Advice for Family History Researchers. Also, the FamilySearch Research wiki for United States Genealogy may be useful.
We suggest that you contact the State Archives or Health Department of State to request a search for the birth and marriage or death certificates that will include her maiden name. You may wish to note any name variants or broaden your search for the surrounding years. In addition, the FamilySearch Research wiki for How to Find United States Vital Records may be helpful.
We hope this is helpful. Best of luck with your family research!