Placenames reflecting the presence of the family are found principally in the areas of their traditional influence in the west and north: Catronmacmanus in Killasser in Co. Mayo, Annaghmacmanus in Loughgall in Armagh, Knockmacmanus in Aghavea in Fermanagh, Lismacmanus in Rathcline in Longford.
Anna MacManus nee Johnston (1866-1902) wrote under the name Ethna Carbery. A prolific and popular poet, she founded The Northern Patriot and was a passionate supporter of the original Sinn Fein.
Francis MacManus (1909-1965), born in Kilkenny, published 11 novels between 1937 and 1959, as well as numerous short stories, biographies, essays and travel books. he is best remembered for his finest book, The Fire in the Dust (1950).
Terence Bellew MacManus (1823-1860), from Fermanagh, was transported for his part in the Young Ireland rising and escaped to America from Tasmania. His funeral, in Dublin, was the occasion of one of the largest Fenian demonstrations.
Declan MacManus (1950 - ) is better known as Elvis Costello. The son of Irish parents who emigrated to London, he is one of the most original and influential songwriters of his generation.