His father, Abraham, was a well-known lawyer and close friend of President Diosdado Macapagal who would be appointed an Associate Justice of the Supreme Court of the Philippines years after his son's death.
He is the eldest son of Presbitero Velasco who is a current Associate Justice of the Supreme Court of the Philippines.
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On September 25, 1958 then mayor Arsenio H. Lacson approved Resolution No. 529 changing Ismar High School to Gregorio Perfecto High School in honor of the late Supreme Court Associate Justice Gregorio Perfecto, one of the signatories of the 1935 Constitution who used to represent Tondo in Congress.
Florenz Regalado (born 1928), Associate Justice of the Supreme Court of the Philippines
John T. McDonough (1843–?), Secretary of State of New York 1899–1902, and Associate Justice of the Supreme Court of the Philippines 1903–1904