'The Seán's' compete in the Louth Junior Championship[1] and Division 3B of the county football Leagues.

[2] The club is named after County Leitrim republican Seán Mac Diarmada, who was executed for his participation in the Easter Rising of 1916.

[3] Dundalk Young Irelands were defeated in the MacArdle Cup final, while in the Championship title match, the Sean's triumphed over Ardee neighbours St Mary's, on a scoreline of 0–07 to 0–05.

[4] The club has reached the final of the Louth Intermediate Championship twice and lost both times, to Stabannon Parnells in 1989[5] and Naomh Fionnbarra of Togher in 2001, after a replay.

[6] In 2022, the club reached the final of the Kevin Mullen Plate competition, only to be beaten by Stabannon Parnells.