 He moved on to join Irish side Drogheda United, helping them defeat Athlone Town 3–1 at Tolka Park on 5 January 1984 to lift the League of Ireland Cup.Gallagher returned to Wisbech Town for the 1984–85 season before rejoining another of his former clubs, Peterborough United, in August 1985.His second spell proved his strongest in league football, as he netted 24 goals in 82 league games, earning a move to Wolverhampton Wanderers in June 1987.