An important bourgeois family from San Sebastian in the commercial field during the 18th and 19th centuries. Ricardo Bermingham arrived in San Sebastian in the second half of the 18th century from Adrigul (Ireland) and married Margarita Mehager. Their children joined the local merchant bourgeoisie and became associated with it, for example, with the Echag e, Brunet, Goenaga, Collado, etc., exponents of the liberal bourgeoisie that wanted to abolish the Fueros.
Joaquín Luis Bermingham Mehager , a member of the first generation of those born in San Sebastian (Gipuzkoa), was born to an Irish father and a San Sebastian mother of Irish origin with property in Pasaia. He owned real estate both inside and outside the town in the first third of the 19th century. In 1847, at the age of 79, he bought land in Hernani. He married Rosa Bordenave and Tastet. He died in 1851, also owning land in the Urumea valley. His son Manuel Bermingham Soroa was the nephew of José María Soroa. Both were capitulars in the San Sebastián municipality in 1826. In the 20th century , Tomáš Bermingham Brunet , a republican, stood for the districts of San Sebastián and Azpeitia in the 1910 elections for deputies to the Cortes within the republican-socialist conjunction and was elected.
- Aparicio Pérez, Celia: Poder municipal, economía y sociedad en la ciudad de San Sebastián (1813-1855), Donostia, Ed. Sociedad Guipuzcoana de Ediciones y publicaciones, 1991.