In 1962, he became the city's official chronicler, and a year later, he became director of the town library after the death of Juan Pérez Arriete, who held both positions until 1961.

[3] As the director of the local library, Delgado Gómez conducted a thorough modernization of the entity which was created in 1925 by another chronicler of Algeciras, Manuel Pérez-Petinto.

Delgado Gómez was the responsible for the construction of a new library headquarters in 1966 to replace an earlier one which was housed in the Algeciras Building Society.

He lectured throughout the Spanish territory at conferences and wrote a dozen books on the history of the city and its local institutions.

[6] Until he died, in 2006, he continued to participate in the city's local events, sharing his knowledge in newspapers and on the radio.