When Charles Alexander died in 1947, he left a very large estate and a particularly detailed and complex will. His intention was that his estate be used to help orphan and destitute children by training them for agricultural careers. However, because of the will’s complexity, an  acceptable proposal for the use of the estate did not come before the  Equity Court until 1963. In 1963, the Presbyterian Church was awarded Alexander’s Estate under a proposal designed by Edward Alan Hunt, law agent for the Church. Hunt’s association with the College became his dominant work and passion during the remaining twenty years of his life. The Church commissioned Ian McKay and Philip Cox, architects, to design the College buildings.

In 1965, the College buildings gained the Sulman and Blacket Awards  for Architecture, the first fifteen students were enrolled, and Sir Robert Menzies opened the C B Alexander Presbyterian Agricultural College. The Church managed the College until 1970 when it was transferred to the State as the CB Alexander Agricultural College, Tocal. This coincided with the passing of the C B Alexander Foundation Act, 1969.

The Tocal property has increased through various land purchases since the College commenced - Athcourt Farm, Glendarra, Bona Vista, Dunnings Hill, Clements Farm and Numeralla. It is now 2,200 hectares.

Key advances have been the admittance of female students in 1972, additional buildings in 1974, 1987, 1994, 1996 and 1997, commencement of dairy apprenticeships in 1980, relocation of NSW Agriculture’s Home Study  program to Tocal in 1981, starting Tocal Field Days in 1984, adoption of a problem-based learning curriculum in 1985, public access to Tocal  Homestead in 1987, commencement of Rural Traineeships in 1994, Certificate of Landcare in 1995, National Rural Business Management Program in 1996 and the Diploma in Landcare and Natural Resources in  2000, the launch of the Tocal Agricultural Centre and the Tocal Visitor  Centre (allowing regular weekend access to Tocal Homestead) in 2002 and designation as a Centre of Excellence in Agricultural Education in  2003. The CB Alexander Agricultural College consolidated with  Murrumbidgee College of Agriculture to become one Registered Training Organisation in 2006, known as Tocal College. The College now operates as the CB Alexander Campus at Tocal and the Yanco Campus (formerly Murrumbidgee Rural Studies Centre).

NSW Department of Primary Industries runs the College, assisted in many different ways by the CB Alexander Foundation, Friends of Tocal, Tocal Students Association, Tocal Alumni (encompassing the former ex-students association), Tocal Field Days Association, and the Tocal College Advisory Council.