You give no timeframe for birth/death, marriage.
Spouse? Parents? Children?
Try the following result from familysearch.org and see if anything looks familiar.
https://familysearch.org/search/records/index#count=20&query=%2Bgivenname%3A%22william%20earl%22~%20%2Bsurname%3AMcCarty~%20%2Bbirth_place%3Atx~%20%2Bbirth_year%3A1850-1940~