I would suggest you first call the Texas Department of Public Safety (DPS)
and verify that you can or can't use your foreign documents for the name
change on your driver license.
"Q: I recently changed my name. What do I need to bring as proof of my
legal name to change my License or Identification Card?
A: A name change due to marriage, divorce, annulment or death of spouse
may be certified by the applicant?s signature. However, no name will be
used that has not been previously documented. In all cases, documented
proof of name change must be presented. If a name is changed for any
other reason, a court order verifying such change is required."
You may contact the DPS at (512) 424-2000 or (512) 424-2600.
You could always get married again, but this time in Texas.
"Applying for a Marriage License in Texas"
Alternatively, you can go through a name change. The following is from
the Travis County, Texas website, but it appears to be applicable to the
rest of Texas.
"Steps for Changing the Name of an Adult in Texas"
You will want to read the above document in full for all of the details,
as there are a number of steps to go through to complete the process.
The above document mentions a "Original Petition for Change of Name of
an Adult" and a "Order Granting Change of Name of an Adult," both of
which the Travis County website also provides.
You are looking at around $230 or so to do the above name change.
If you need any clarification, please feel free to ask.
Google search on: Texas "name change"
Google search on: Texas "name change" "drivers license"
Looking Forward, denco-ga - Google Answers Researcher