Searching for Birth Father (Karl or Carl) Lived in Irving Texas in 1968

Hello I am seeking my birth father all I have is a first name (Karl or Carl) he was a friend of my birth mother (Virginia Ann Haggard Kleist) and my four birth brothers, they lived on Brady Street in Irving, Texas. I was told he use to take my brothers out to do things like movies, etc. This is from the time frame of 1968 and I was born in Dallas, TX at Parkland Hospital. My birth date is 11-11-68. I have found my birth family with the sad exception that my birth mom Virginia had passed in 1979 and I found my birth family (siblings,Aunts & Uncles and Nieces and Nephews in 1988.) I would love to find my father and siblings. My birth name was Marlene Jo and my adopted name is Karen Jenenne.