[3][4] He is the first cousin of Felipe Rivero, the director of the Cuban Nationalist Association at the time that they were implicated in the firing of a bazooka at the United Nations headquarters in 1964.

[6] After the success of the Cuban Revolution, and a series of attacks on the headquarters of Diario de la Marina, Rivero sought refuge in the Embassy of Peru.

On May 10, 1960, the offices of Diario de la Marina were infiltrated by a squad of uniformed men with rifles in their hands to prevent the journalists present from publishing an editorial in support of Rivero.

[10] A rally, in Rivero's honor, was held on November 17, 1963, by Dr. Emilio Nunez-Portuondo in preparation for a visit by John F. Kennedy to Miami.

The visit, which was aimed at dialoguing with members of the Inter-American Press Association, was able to generate an audience of "approximately 6,000 to 8,000 Cubans" according to United States Secret Service estimates.