Pollack had an identical twin brother Merrill, who was an editor and writer with positions at the Saturday Evening Post, Simon and Schuster and Viking Press.

"[6] The artists represented at Galerie Huit were: Rodney P. Abrahamson, Oscar Chelimsky, Carmen D'Avino, Sydney Geist, Burt Hasen, Al Held, Raymond Hendler, Herbert Katzman, Paul Keene, Jonah Kinigstein, Jules Olitski, George Ortman, Marianna Pineda, Jack Robinowitz, Haywood Bill Rivers, Robert L. Rosenwald, Shinkichi Tajiri, Harold Tovish, Hugh Townley and Hugh Weiss.

During World War II, where he served in the 87th Mountain Division participating in the invasion of Kiska in the Aleutians and also in the South Pacific, propelled him to produce and illustrate O is for Overkill[7] with his twin brother Merrill.

Art critic Alexis Gray wrote:" Reginald Murray Pollack, who studied at New York City's High School of Music and Art before serving in the U.S. Army Air Force during World War II, was described by his twin brother in a June 1977 Esquire article as "a fine artist, humanist, poetically inclined anti-Vietnam war peace marcher, participant, with other artists, in an antiwar coalition, occasional user of pot and sympathizer with hippies and yippies and most youthful rebels."

The same year Peace March was completed, Reginald Pollack's career was highlighted in the Star Trek episode "Requiem for Methuselah."

In it, the fictional character Mr. Flint, an immortal human from Earth who lived under several aliases over a span of six thousand years, acquires a painting by Pollack that is prominently displayed in his castle on Holberg 917G.

In a key scene at Flint's residence, during which Spock explains to a host of dignitaries the significance of Western art since the Italian Renaissance, the Starfleet first officer likens Pollack's career to that of Leonardo da Vinci.