What are the first names of the people behind "Agronsky and Company" and "The McLaughlin Group"?

Martin Agronsky and John McLaughlin the people behind “Agronsky and Company” (synd., 1969-87) and “The McLaughlin Group” (synd., 1982).

What is John McLaughlin's sign-off line on "The McLaughlin Group" (synd., 1982)? John McLaughlin's sign-off line on "The McLaughlin Group" was "Bye-bye."
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What are the first names of the people behind “Agronsky and Company” and “The McLaughlin Group”?