Past affiliation(s) within the IAU

• Past President of Commission 30 Radial Velocities (1982-1985)
• Past Vice-President of Commission 30 Radial Velocities (1979-1982)
• Past Organizing Committee Member of Commission 30 Radial Velocities (1985-1988)
• Past Organizing Committee Member of Commission 45 Stellar Classification (1982-1985)
• Past Organizing Committee Member of Commission 45 Stellar Classification (1979-1982)
• Past Organizing Committee Member of Commission 30 Radial Velocities (1976-1979)
• Past Organizing Committee Member of Commission 30 Radial Velocities (1973-1976)
• Past Member of Division A Fundamental Astronomy
• Past Member of Division B Facilities, Technologies and Data Science
• Past Member of Division G Stars and Stellar Physics
• Past Member of Division H Interstellar Matter and Local Universe
• Past Member of Commission 5 Documentation & Astronomical Data (until 2015)
• Past Member of Commission 25 Astronomical Photometry and Polarimetry (until 2015)
• Past Member of Commission 30 Radial Velocities (until 2015)
• Past Member of Commission 33 Structure & Dynamics of the Galactic System (until 2015)
• Past Member of Commission 45 Stellar Classification (until 2015)
• Past Member of Division IV Stars (until 2012)
• Past Member of Division VII Galactic System (until 2012)
• Past Member of Division IX Optical & Infrared Techniques (until 2012)
• Past Member of Division XII Union-Wide Activities (until 2012)