Thanks to a prompt from Peter Calver in one of his Lost Cousins newsletters, in addition to the Irish Roman Catholic PRs I was going to advise you of, there's some other records that are free.

https://www.
findmypast.co.uk/free-ancestry-records

Ireland Roman Catholic Parish Records

1881 census

Devon Wills Index 1163-1999

Oxfordshire Wills Index 1516 - 1857

British Army, De Ruvigny's Roll Of Honour 1914-1918

US Census 1900

Pam