Jeffrey Owen Thomas was a student at Carey from 1959 (Year 7) to 1964 (Year 11). He was Captain of Moore House in the Junior School in 1959, was an 'outstanding performer' in the Junior School Open Cricket XI and sang in the Junior School choir. In the Senior School he played U15 Football and was selected for the 1st XVIII in Year 11.

He was member of the OCGA Council from 1985 and Vice-President in 1986 until School Board responsibilities took precedence.

He became a member of the School Board in 1986 and was appointed President in 1991. Since then, he has presided over many new developments with the school including:

1992

• Opening of the Geoffrey Stevens Swimming Pool Complex
• Launching the 'Carey 21' Strategy Plan
• Upgrading of Bulleen and Donvale

1994

• Opening of the S. L. Hickman Building in Junior School

1995

• The Early Childhood Centre (Kew)

1996

• The Middle School and the refurbishment of the Memorial Great Hall

1997

• The refurbishment of the Mellor Library

1998

• The building of the Llew Evans Junior School Library
• The creation of the Macafee Courts

1999

• The development of the Jeffrey O. Thomas Quadrangle