Trying to Find My Family

I am trying to find my family on my dad’s side. My dad’s name was Michael Leon Gilbert, born in 1940 in Texas. His father’s last name was Tate. I believe that the Tates live sonewhere in Northern Texas. My dad was from Borger. I would love to find them. My dad only found them a few years before he died in 1997. I was 4, so I never got to meet them, and my mom can’t remember where he found them.