I work on the Catholic Encyclopedia project on enWP. I'll list here some of the titling/missing article issues that come up.
- Catholic Encyclopedia (1913)/Eusebius of Laodicea should exist [1]
- Catholic Encyclopedia (1913)/Ezzo should exist [2]
- Catholic Encyclopedia (1913)/John England should exist [3]
- Sir Henry Charles Englefield, Bart. [4]
- English Confessors and Martyrs (1534-1729) [5]
- The English College, in Rome [6]
- Reorganization of the English Hierarchy [7]
Relevant essay: w:Wikipedia:Merging encyclopedias