The Ibadan Grammar School Old Students Association is a thriving organization of thousands of old students living and working around the world. 
A worldwide network of chapters and affiliates of the association extends across major cities in Nigeria, Canada, the U.S., UK and overseas. These groups, 
run by alumni volunteers, help organize events, programs for the school and other great opportunities to keep IGS old students in touch with the school and
each other. Get involved with your local chapter or class set and start reconnecting! 
The President of the IGSOSA National Body is Venerable Kolawole Jaiyeoba

1979/1984

Inactive

1978/1983

Inactive

1977/1982

Inactive

1976/1981

Active

1975/1980

Active

1974/1979

Active

1973/1978

Active

1973/1977

Active

1972/1976

Active

1971/1975

Active

1970/1974

Active

1969/1973

Active

1968/1972

Active

1967/1971

Inactive

1966/1970

Inactive

1965/1969

Inactive

1964/1968

Inactive

1963/1967

Inactive

1962/1966

Inactive

1961/1965

Inactive

1960/1964

Inactive