Santiago Oppenheimer Van Rhyn[3][note 1] (23 May 1869 – ca.

[5] His parents were Carlos Juan Oppenheimer-Bettini[note 2] and Ana Van Rhyn Mitchell.

He married Isabel Fugurull and they had a son named Alfonso.

Several sources state that Oppenheimer was the Ponce mayor who received U.S. President Theodore Roosevelt during his trip to Puerto Rico on 21 November 1906.

[7][8] In Ponce, there is a street in Urbanización Las Delicias of Barrio Magueyes named after Oppenheimer.