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Giles played for Bohemian FC and Shelbourne FC amongst others during his career in the League of Ireland. He made his debut for Bohs in the game that won them the 1929/30 league title against Bray Unknowns on December 28, 1929 . He would later manage Drumcondra F.C.
- Bohemian FC match programme, Vol. 54, no. 16