Daniel, nació en España el 6 de Enero de 1931, hijo de Emilio Fernández y Lucía Mon.

Católico de religión, cursó parte de su primera enseñanza en el Colegio de Belén.

Sus estudios de segunda enseñanza y universitarios fueron en Eastern Military Academy de New York y la Universidad de la Habana.

Posteriormente se hizo piloto aviador. Trabajó como piloto fumigador y como piloto ejecutivo con la Textilera de Ariguanabo antes de entrar en Cubana de Aviación en Mayo de 1954.

Se incorporó a la Brigada como integrante de uno de los primeros grupos en Agosto de 1960, perteneciendo al Escuadrón de B-26. Daniel era una persona de tipo reservado, afable y amistoso, cumpliendo siempre con lo ordenado.

Fue seleccionado, con su compañero Gastón Pérez Rangel, como uno de los pilotos para la primera misión de combate atacando al Campamento militar de Columbia con otros dos aviones B-26.

Ese día también se bombardearon los aeropuertos de San Antonio y  Santiago de Cuba.

Durante uno de sus pases al aeropuerto de Columbia, fue tocado por fuego antiaéreo y partió hacia Estados Unidos con un motor incendiado. A unas 20 millas al norte de la Habana su avión explotó pereciendo ambos tripulantes.

Daniel was born in Spain on January 6, 1931. The son of Emilio Fernandez and Lucia Mon.

A catholic, he did part of his primary education at Colegio de Belen. His secondary and universal education was done at Eastern Military Academy in New York and the University of Havana. He subsequently became a pilot.

He worked as a crop duster pilot and as executive pilot for Ariguanabo Textile Mill before joining Cubana de Aviacion in May 1954.

He joined the Brigade as part of one of the first groups in August 1960, belonging to the B-26 squadron. Daniel was a reserved cordial and friendly individual who always did as ordered. He was selected with his colleague Gaston Perez Rangel as one of the pilotss for the first combat mission, attacking the Columbia military camp with two other B-26 planes.

That day the San Antonio and Santiago de Cuba airports were also bombed. During one of his runs at Columbia airport he was hit by antiaircraft fire and he headed to the United States with fire in an engine. About 20 miles north of Havana his airplane exploded and both members of the crew were killed. They were the first two killed in action from the Liberation Air Force of Brigade 2506.

Some of his belongings are on exhibition at the Brigade Museum.