THIS IS A UNIFIED IRELAND AS PART OF THE UK BEFORE PARTITION AND INDEPENDENCE IN 1921. WILLIE O’HAGAN REPRESENTED BOTH IRISH NATIONS AS A ST MIRREN PLAYER.
| PLAYER | POS | YEARS | APP | GLS* | HONOURS | CAPS/GOALS |
| Willie O’Hagan | GK | 1912-21 | 191 | 47 | Victory Cup | 2/0 |
| Harold McKenna | DEF | 1918-20 | 52 | 0 | Victory Cup | – |
