Interesting that the "Ireland" team played at Windsor Park in Belfast, as they technically still do as that is the home ground of the Irish Football Association and the team now known as "Northern Ireland" is in fact the direct heir of the old 32-county united Ireland side. The current "Ireland" football team is in fact the partitionist breakaway 26-county "Republic of Ireland" side.25 October 1919The first British Home Championship football match since 1914 took place at Windsor Park, Belfast. Ireland and England drew 1-1. Jack Cock and Jimmy Ferris were the scorers.
If I am not wrong as late as the 1970s when Northern Ireland played in the old British Home Internationals it did so as Ireland, as that is what the team was then still recognised as.