Dear Nan Heard:
Thank you for posting your question on History Hub!
Vital records, such as birth, marriage and death records are usually held at the state or county level. Information about requesting these types of records can be found on the Alabama Department of Archives and History's website. If the marriage occurred at a local church, sometimes the church kept such records.
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.
It is also worth noting that census records are a great resource for genealogical research. Information about census records can be found on our website at https://www.archives.gov/research/genealogy/census/about. Many of these records have been digitized and are available through our partners or our catalog. For additional information about accessing these records, you can visit our website.
We also 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 hope this information assists with your family research!