Archbishop Kelly visited Randwick in 1921, and pressed for the establishment of a school for boys.

Land became available in Alison Rd and on 4 November 1922 Dr Sheehan laid the first stone which now forms part of the College Wall.

[citation needed] At the end of the 2014 academic year, Br David Hall concluded his term as Headmaster at Marcellin College.

Mr John Hickey was later appointed as his successor, becoming the 24th and first lay Headmaster of the college.

The following individuals have served as Headmaster of Marcellin College Randwick: Marcellin College has always achieved strong academic results, with students regularly attaining Universities Admission Index (UAI) scores of over 90.

[9] In addition to HSC success, the school has achieved in academic pursuits such as debating, oratory and chess.