Just do a search for their name. There should be an exact title match in the search results. Middle initials might make the search a little harder, but they should still show up. Example:
Another problem: none of them are active, popular, or new, so the search often doesn't work if you don't get the name exactly right. Not sure what to do about that.
https://patrick.net/search?s=ted+cruz
I back-dated all the congressmen posts so as not to clutter up the home page.