The Leaf Chronicle has a story on their site now about a transwoman who married a cis-man in prison in Tennessee in 2007, but whose marriage was overturned because she's legally considered male in the state of Tennessee.
The Chronicle did a pretty lengthy investigation into this case, and you can read the full details on their site. But the short version is that Jo Rittenberry was born male in Kentucky and transitioned later in life. She claims to have had full SRS in Montreal, but the clinic where she had it says she didn't go through with it. Either way, she was living as a woman, and she had had her birth certificate changed in Kentucky based on a letter from her doctor saying she completed SRS. She then used that birth certificate to get a female driver's license in Tennessee (Tennessee doesn't allow sex changes on birth certificates, but Kentucky does).
She was found guilty on domestic violence and credit card fraud (unrelated to gender/sex), and was sent to the men's penitentiary because an officer patted her down during a physical and deemed her male. She is currently separated from the general population, though, because prison officials worry about her safety.
Rittenberry applied for a marriage license with Jeffery Scott Phillips, a cis-man who wasn't in prison, and used her driver's license to obtain it. Phillips said they married "no questions asked" through a telephone receiver. The state later found out about Rittenberry's transgender history and
invalidated the marriage seems set to invalidate the marriage.*