
author
d. 1932
An inventive California polymath, he moved easily between engineering, architecture, science, and local history. His surviving work shows a curious mind with deep ties to San Francisco and the early history of Monterey County.

by Zoeth Skinner Eldredge, E. J. (Eusebius Joseph) Molera
Born in Vic, Catalonia, in 1846 and later active in California, E. J. Molera was an engineer and architect whose career stretched across several fields. Historical and archival sources also connect him to the Cooper-Molera family of Monterey, through his marriage to Amelia Cooper, and to their son Andrew J. Molera, whose name remains well known in California history.
Molera appears in library and archival records not just as a builder and technical figure, but also as a writer. Project Gutenberg lists him as E. J. (Eusebius Joseph) Molera, and he is credited there alongside Zoeth Skinner Eldredge on The March of Portolá and the Discovery of the Bay of San Francisco, showing his interest in the history of California as well as its development.
He died in San Francisco in 1932. Taken together, the record that survives suggests a practical, wide-ranging mind: an immigrant professional who helped shape California in both material and intellectual ways.