Past affiliation(s) within the IAU

• Past President of Commission 5 Documentation & Astronomical Data (1964-1967)
• Past President of Commission 5 Documentation & Astronomical Data (1961-1964)
• Past Vice-President of Commission 46 Astronomy Education & Development (1967-1970)
• Past Organizing Committee Member of Commission 46 Astronomy Education & Development (1988-1991)
• Past Organizing Committee Member of Commission 46 Astronomy Education & Development (1985-1988)
• Past Organizing Committee Member of Commission 46 Astronomy Education & Development (1982-1985)
• Past Organizing Committee Member of Commission 5 Documentation & Astronomical Data (1979-1982)
• Past Organizing Committee Member of Commission 46 Astronomy Education & Development (1979-1982)
• Past Organizing Committee Member of Commission 5 Documentation & Astronomical Data (1976-1979)
• Past Organizing Committee Member of Commission 46 Astronomy Education & Development (1976-1979)
• Past Organizing Committee Member of Commission 5 Documentation & Astronomical Data (1973-1976)
• Past Organizing Committee Member of Commission 46 Astronomy Education & Development (1973-1976)
• Past Organizing Committee Member of Commission 46 Astronomy Education & Development (1970-1973)
• Past Member of Division B Facilities, Technologies and Data Science
• Past Member of Division E Sun and Heliosphere
• Past Member of Commission 46 Astronomy Education & Development
• Past Member of Commission 5 Documentation & Astronomical Data (until 2014)
• Past Member of Commission 10 Solar Activity (until 2014)
• Past Member of Division II Sun & Heliosphere (until 2012)
• Past Member of Division XII Union-Wide Activities (until 2012)