Athlone Town won the FAI Cup, their first domestic success in 1924, beating Fordsons.

Hannon was one of five Athlone Town players chosen to represent the Irish Free State at the 1924 Paris Olympic Games.

The other players were Tommy Muldoon, Frank Ghent, John Joe Dykes and Paddy O'Reilly.

[2] The club finished second in the league in the 1974–75 season, earning a place in the UEFA Cup, the first time they had ever qualified for European competition.

They played KB in Europe the following season, earning a draw in the first leg in Denmark and again at St. Mel's Park, going out on the away goal rule.

In the 1981–82 season Athlone Town won the League Cup for the second time, beating Shamrock Rovers.

The club remained in the top flight until the 1991–92 season, when they finished eleventh and were subsequently relegated to the First Division.

In September 2017 the FAI banned goalkeeper Igors Labuts and midfielder Dragos Sfrijan for 12 months after a UEFA investigation found "clear and overwhelming betting evidence" of fixing of Athlone's 29 April match against Longford Town in the 2017 League of Ireland First Division.

Source:[10][11][12][13] Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.