Some sources for Catholic history/family history:
Midland Catholic History Society formed by merger of Staffordshire Catholic History Society and Worcestershire CHS.
https://midlandcatholichistory.org.uk Contents of past journals of Midland Catholic History Society are listed at
www.catholic-history.org.uk/midland/midland_ind.htm"Worcestershire Recusant" was the journal of Worcestershire Catholic History Society. There is an index to titles of articles at
www.catholic-history.org.uk/midland/worc_ind.htmCatholic Family History Society. Informative blogs, lists of books, CDs and other publications, meetings, conferences and outings.
https://catholicfhs.wordpress.com English Catholic History Association
https://echa.org.ukThe Catholic Record Society publications date back more than a century. Some earlier journals are available online as pdfs, e.g. on the Internet Archive. Many historical articles in them. Some have transcriptions of early registers, mostly 18th-early 19th centuries. Browsing baptism registers printed in these you will notice that many babies born in that era were baptised within a few days of birth, some on the same day.
"Catholic Family Historian's Handbook" by A.J. Mitchinson, published by North West Catholic History Association 1999. Available as a pdf. Some sources are out of date but it's a brief, easy to read introduction. Topics include chronology, making a start, names in Latin registers, Latin format of registers and a translation, glossary, lists of record offices, libraries, societies, journals and books.