Birth Records Harris County

How can I find the birth date of a woman if I only know her married and not maiden name?

I need free information. It is for my paralegal class and we are to do research to answer a list of questions. All eight questions are in public records and we are not to pay for any information. I live in Houston, Harris County, Texas

Go to the bureau of records. Check her married name, the maiden name will be there. Then check her name on the birth records. This assumes, of course, she was born and married in that county.