Past affiliation(s) within the IAU

• Past Vice-President of Executive Committee (1991-1994)
• Past Vice-President of Executive Committee (1988-1991)
• Past Member of Division VI Interstellar Matter
• Past Member of Division X Radio Astronomy
• Past Member of Division XI Space & High Energy Astrophysics
• Past Member of Division H Commission 34 Interstellar Matter
• Past Member of Division B Commission 40 Radio Astronomy
• Past Member of Division D Commission 44 Space & High Energy Astrophysics