The records have been divided into 9 series as follows:
- Induction Mandates [ER.Ad/Ind]. 8 boxes. 1687-1976.
- Officials [ER.Ad/Off]. 1 file. 1632-1888.
- Convocation Papers [ER.Ad/Conv]. 1 file. 1722-1892.
- Revenues: Procurations and Fee Books [ER.Ad/Rev.Bk]. 16 volumes, some unbound. 1674-1954.
- Revenues: Fee Papers [ER.Ad/Rev.P]. 2 boxes. 1675-1968.
- Archbishops' Visitations: Inhibitions [ER.Ad/Vis.In]. 1 file. 1853-90.
- Archbishops' Visitations: Relaxations [ER.Ad/Vis.Rel]. 1 file. 1764-1890.
- Parish Register Transcripts [ER.Ad/PRT]. 1 box.
- Administrative Miscellanea [ER.Ad/Misc]. 3 boxes. 16th-20th centuries.