A teacher by profession Frank taught for 50 years in St Laurence O'Toole C.B.S., Seville Place, Dublin.

[1][2] In 1928 he led the way in setting up Primary Schools' League GAA (Cumann na mBunscol) to promote Gaelic culture.

[4] He resigned his seat on 30 October 1924 following the Irish Army Mutiny and, along with several other members of the Dáil, formed the National Party.

[5] After retirement from teaching an inter-county senior football testimonial match between Meath and Louth was held at Croke Park to recognise Frank's life of service to the national game.

On his death in 1957 the Frank Cahill memorial committee was formed to recognize his contributions to the GAA and Parish.