Thank you for posting your question on History Hub.
The National Archives has immigration records for arrivals to the United States from foreign ports between approximately 1820 and December 1982 (with gaps). The records are arranged by port or airport of arrival. We recommend contacting the National Archives at Fort Worth, which is the custodian of records from Louisiana, to request a search of the Passenger Arrival lists for your ancestor.
The Federal government does not ordinarily create or maintain birth, death, marriage, divorce, adoption, or burial records. Such records are made and kept by state and local governments rather than the National Archives.
To search for marriage records in Tennessee, please visit the Tennessee State Library and Archives website.
We hope this information is helpful in your research.
The National Archives and Records Administration