Alan Garen
Alan Garen was an American geneticist who co-discovered suppressor mutations for tRNA. The Garen lab also showed that certain triplet codons failed to bind amino acids. Thus, the Garen lab and Brenner labs are both credited with discovery of the stop codons of the genetic code.
Garen was a professor at Yale University between 1963 and 2021. He was a member of the National Academy of Sciences and the American Academy of Arts and Sciences.