I Live In Ubon Ratchathani, I have ben here more than 30 years, one time only, have the immigration police, ben here to se my pas port, I think it's 5-6 year since.
The visa I got, is just a normal non. re-entry, it's nothing written about, marriage in the visa, I never askt fore it, but she/they wantet to se the orginal paper, so maby it goes there under.
I have gotten non O one year, in Savannaket several times, I am married here in this contry, one time a lady at the Thai consulate, in Savanaket askt me, where is your wife, I told her back in Thailand, the marry's paper, I only had a copy, it was not enough, it had to be the original, so I only got a tourist visa, after I have the original marry's paper with me, never any problems.