After his semi-retirement in the 1960s , he worked with the pro-health anti-smoking lawyer John Banzhaf 's group , ASH .
After his semi-retirement in the 1960s , he supported other anti-smoking campaigns .
After his semi-retirement in the 1960s , he worked with the pro-health anti-smoking lawyer John Banzhaf 's group , ASH and supported other anti-smoking campaigns .