Luis F. Álvarez

Luis Fernández Álvarez (1 April 1853 – 24 May 1937) was a Spanish American physician and researcher who practiced in California and Hawaii.

Fernández was actually his principal surname (his father's surname), per Spanish naming customs. However, he is best known by his mother's surname, as in the English-speaking world the last name is the principal surname, although, again, this is contrary to Spanish naming customs. His American-born children and descendants took his last surname for that reason, as well, albeit without the diacritic. Provided by Wikipedia