• 20 March 1952 Correspondence from Fr. R. J. Casey to Fr. Mangan submitting the Communion numbers, Easter Duty defaulters and other matters on church property.

• 7 April 1952 Correspondence from Fr. J.S. Robinson to Fr. Mangan submitting the Communion numbers, Easter Duty defaulters and other matters on church property.

Letter from Fr. Thomas O’Reilly, North William Street to Fr. Mangan regarding a leaflet by Charbel Press on St. Philomena. It was produced under the direction of Fr. Paul O’Sullivan, O.P. Annotated by +McQuaid.

Correspondence between Aodh MacNeill,, 4, August 1971, Adjutant General, +McQuaid, Fr. Chris Mangan, various Head Chaplains and other members of the clergy in relation to religious ceremonies which took place in the chapels of the Army Barracks or in the Church of the Most Holy Trinity, Dublin Castle., 57 items

Letter from Fr. John Menton to Fr. Mangan submitting a short report on the parish.

Letter from Fr. Leo Clarke to Fr. Mangan submitting the number of persons who received Communion and other matters. 1 item

Letter from Fr. Troy to Fr. Mangan relating to the appointment of spiritual directors. Annotated by +McQuaid.

Two letters to Fr. Christopher Mangan from Colonel MacNeill and Colonel Nolan asking if he is in a position to furnish the maps.

Correspondence between A.P. Reynolds, Chairman, and Fr. C. Mangan regarding the advisability of providing a chapel in the new omnibus station adjoining the Custom House.

and Fr. Christopher Mangan regarding the staffing of the new County Wicklow Hospital in Rathnew.