author
d. 1932
An engineer, architect, and translator with deep ties to early California history, this Spanish-born writer helped bring important exploration documents to English-language readers. He is best known in book history for annotating and translating material published in The March of Portolá and the Discovery of the Bay of San Francisco.

by Zoeth Skinner Eldredge, E. J. (Eusebius Joseph) Molera
Born in Vic, in Barcelona province, in 1846, he later made his career in California, where he became known as a civil engineer and architect. Historical and architectural sources describe him as active in San Francisco and connected with important engineering, design, and civic work in the state.
As an author, he is chiefly remembered for his contribution to The March of Portolá and the Discovery of the Bay of San Francisco (1909). In that volume, he translated and annotated the log of the San Carlos and related original documents, helping preserve firsthand material about the exploration of the California coast and San Francisco Bay.
He died in 1932. While his professional life ranged far beyond writing alone, his published work remains valuable for readers interested in California history, exploration, and the documentary record behind those stories.