Hi Patrick,
I'm a Jaimez, living in Austin, Texas, been here all my life. No Ruben in our family, only 3 girls. In the 1970's, we were the only Jaimez in the phone book but there are alot more now. Have you looked on Anywho.com?
I am looking for my half brother named Pete Jaimz, he posted a messege here at Ancestry.com but I've had no luck with any responses. I found his birth record in San Antonio, his name was entered wrong on his Birth certificate. He has 2 children, Serefina born in 1979 and Pete, Jr. born in 1977. He lives in Indiana, we've called some phone numbers, mailed letters but so far we can't find him. Good luck to you.