Samuel Clemens married Olivia Langdon in Elmira, New York, in 1870.
Notes on verification
Well-documented biographical fact corroborated by multiple independent, authoritative sources including the Mark Twain House & Museum and the Mark Twain Project archives.
Sources
- Unswerving irregularity | USPTO (uspto.gov)
- https://www.marktwainhouse.org/man/olivia_langdon_clemens.php (marktwainhouse.org)
- https://www.marktwainproject.org (marktwainproject.org)
- https://www.pbs.org/marktwain/aboutmt/family.html (pbs.org)