One of the most popular Thai Consulates in the US is the Consulate in Illinois. There a number of other Consulates in the USA these being the Thai Consulate in New York and also the Thai Consulate in Los Angeles. You may use the Thai Consulate in Illinois to apply for a Thai visa or you may obtain a passport for your Thai wife and also register you child born in the US with the Thai government as a Thai citizen. The contact details are below for this Consulate including a map if you or your Thai wife want to visit the Consulate in person.
Royal Thai Consulate General in Chicago 700 North Rush Street Chicago, 60611-2504 City: Illinois Phone: (1-312) 664-3129 Fax: (1-312) 664-3230 Website:http://www.thaichicago.net Email:firstname.lastname@example.org Office Hours: Office hours: 09:30 – 16:30 hrs (Monday – Friday) Consular service hours: 10:00 – 14:00 hrs.(Monday – Friday)