Past affiliation(s) within the IAU

• Past President of Commission 27 Variable Stars (1964-1967)
• Past Vice-President of Commission 27 Variable Stars (1961-1964)
• Past Organizing Committee Member of Commission 27 Variable Stars (1970-1973)
• Past Organizing Committee Member of Commission 27 Variable Stars (1967-1970)
• Past Organizing Committee Member of Commission 29 Stellar Spectra (1970-1973)
• Past Organizing Committee Member of Commission 29 Stellar Spectra (1967-1970)
• Past Member of Division IV Stars (until 2012)
• Past Member of Division V Variable Stars (until 2012)
• Past Member of Division G Stars and Stellar Physics
• Past Member of Commission 27 Variable Stars (until 2013)
• Past Member of Commission 29 Stellar Spectra (until 2013)