Past affiliation(s) within the IAU

• Past President of Commission 45 Stellar Classification (2000-2003)
• Past Vice-President of Commission 45 Stellar Classification (1997-2000)
• Past Organizing Committee Member of Commission 45 Stellar Classification (2003-2006)
• Past Organizing Committee Member of Division IV Stars (2000-2003)
• Past Organizing Committee Member of Commission 45 Stellar Classification (1991-1994)
• Past Organizing Committee Member of Commission 45 Stellar Classification (1988-1991)
• Past Organizing Committee Member of Commission 45 Stellar Classification (1985-1988)
• Past Member of Division G Stars and Stellar Physics
• Past Member of Division H Interstellar Matter and Local Universe
• Past Member of Commission 37 Star Clusters & Associations (until 2014)
• Past Member of Division IV Stars (until 2012)
• Past Member of Division VII Galactic System (until 2012)
• Past Member of Commission 45 Stellar Classification (2003-2009)