The heritage-historic Filipino-colonial mansion Bahay na Bato the official repository (established in 1998 as a natural history and ethnography museum) of Baliwag and Bulacan province.

The century-old Museo ng Baliwag is administered by Jesusa Garcia Villanueva who serves as the curator for the museum and officer-in-charge for the library since July 2017, succeeding librarian Resurrection U.

[4] Baliwag, Bulacan, was the first Municipio ever created during the American regime in the Philippines, on May 6, 1899, five days before the fateful "Sabang Battle".

In his lucrative profession, he treated patients in his clinic located inside their big ancestral mansion across the old Municipal Building traversing the National Highway.

[6] The Filipinos gathered at the plaza of the St. Augustine Parish Church of Baliuag after the Holy Mass, and thereafter the officials were selected based on the qualifications for voters set by the Americans.

But all these political officials remained under the thumbs and the habito, of the autocratic Augustinian friars, the Baliuag Kura Parokos.

The Gonzalez old mansion served as Lumang Munisipyo (the Old Municipio or Town Hall Building, as seat of the local government) for 65 years.

Mayor Rolando Salvador, on August 9, 1998, accepted the renovate Building as part of municipal government property.

[10] The historic turnover was highlighted by a "Buntal Hat Dance" (by Rene Plamenco, Soledad Cruz, Eliseo Gonzalez and Brgy.

The slain Mayor Servando "Bandong" Santos' gun, memorabilia is at the side of the dining and reception halls.