Between 1927 and 1932 the original St George's School in Margaret Street was reorganized into 3 departments: Senior Boys, Mixed, and Infants.

A new building for the senior boys located next to the Primary school was begun in 1939 and opened in 1948.

[2] The buildings remained derelict for many years until they were demolished in 1996 to make way for housing.

Always known in York for the success of its Rugby, Football, and Cricket teams.

From the 1930s until the 1970s the Headmaster and (usually) two more teachers were members of the De La Salle Brothers.