Legal Question in Family Law in Texas

Since it appears you have no court orders restricting her residence, or asserting jurisdiction; your options become more limited. Most likely an attorney may file here in Texas for divorce, asserting your residence as the child's residence; serving your wife for Temporary Hearing. If she fails to appear your attorney may be able to obtain a court order to produce the child. This is a complicated situation which is time-sensitive (you don't want her to file in Missouri first), so you should retain an attorney as soon as possible.