Input (grade 11): Erskine Hamilton Childers (11 December 1905 - 17 November 1974) served as the fourth President of Ireland from 1973 until his death in 1974.
Output (grade 11): Erskine Hamilton Childers (11 December 1905 - 17 November 1974), was the son of Robert Erskine Childers (author of the spy thriller The Riddle of the Sands.