My husband and I knew a Cornelius Laird in Louisiana who graduated from high school in 1957. He was very musically talented. The last time my husband saw him was in 1970. He was living in an apartment in Texas with several other people. His behavior and appearance, according to my husband, was probably what could be described as "eccentric". We lost track of him after that. He had a sister named Opal who graduated in 1955, I think. I was thinking about him this evening and searched the internet where I found your message which is several years old. Let me know if you found Cornelius.