[6] In 1876 the north aisle was extended by the addition of an organ chamber and vestry designed by Henry James Tollit.

They include the composer Sir John Stainer (1840–1901) who, while he was Professor of Music at Magdalen College, was church warden at St Cross.

[10] St Cross had a falling attendance for many years, and in February 2008 its Parochial Church Council decided unanimously to allow Balliol College to develop a purpose-built repository and research facility for the College's special collections and their users in the church.

The church has not been deconsecrated; under the terms of the College's 999-year lease on the building, the chancel is maintained for occasional services.

The bells remain in situ in the tower, but unringable, after Oxford City Council refused permission for their removal.

[13] In May 2008, the Shirley Foundation contributed £1m towards Balliol College's Historic Collections Centre to be housed in St Cross Church.

[14] Many of the medieval books survive from the College's contemporary library, and the bulk of the collection is not formed of later antiquarian acquisitions as held by more recent foundations, although it is as large as some of these.

John Snell, the benefactor of the post graduate scholarships connecting the College and Glasgow University, was buried in the Church in 1679.