[3] Appointed by Julián Calleja y Sánchez, he directed the construction of the ophthalmology department at the Old Medicine School of San Carlos.

[12] On April 18, 1869, he joined members of the Medical-Surgical Press of Madrid, including Dr. Pedro González de Velasco and Quintín Chiarlone, to discuss convening a general medical assembly.

[13] As a delegate of the University of Madrid's Academy of Public Lectures, he attended a literary festival honoring Spanish novelist Miguel de Cervantes on April 23, 1869.

[14] In October 1869, El Pabellon Medico reported that the Municipal Charity of Madrid launched a clinic for the poor with eye conditions, under the management of Dr. Delgado Jugo.

[16] Dr. Delgado Jugo worked on the Spanish version of German ophthalmologist Richard Liebreich's Atlas of Ophthalmoscopy, which was published in 1870, after the original 1863 edition.

[18] Amadeo I of Spain and Maria Vittoria dal Pozzo entrusted him to the directorship of the National Ophthalmological Institute (Spanish: Instituto Oftalmico), inaugurated in 1872, of which he was director until his death.