An ‘ad clerum’ ( Latin for ‘to the clergy’) is a letter or announcement primarily addressed to ordained ministers from their Bishop. There are regular, formal notices that the Bishop uses to inform or instruct his clergy for their awareness or action. There are also other ad hoc letters and notes about specific topics.
file 1: Ad clerum #4/90 to #8/99 file 2: Ad clerum #9/99 to #6/02 note: 4-12-2001 Bishop Smith was appointed Archbishop of Cardiff; thence "Sede Vacante" with Mgr Tony Rogers as Diocesan Administrator