When Peter Magowan shaped the guidelines and requirements for various Giants to gain admission into the club’s Wall of Fame, the last person he thought of was himself.

Virtually everyone else, however, considered the team’s former managing general partner an essential part of the team’s development into World Series winners in 2010, ’12 and ’14. On Saturday, Magowan was recognized with the installment of a plaque on the Wall, which is parallel with King Street. He became the first non-player to receive this honor.

Giants president and CEO Larry Baer recalled Magowan, who died of cancer on Jan. 27 at age 76, approaching him with ideas for honoring the franchise’s top San Francisco-era performers (since 1958). Magowan’s thoughts were written single-spaced on five sizable sheets of paper. Established in 2008, the Wall features ballplayers who spent nine seasons for the Giants or logged five seasons with them while earning at least one selection to a National League All-Star squad as a San Francisco representative.

Left-hander Shawn Estes, a Wall inductee who put together his best seasons while Magowan ran the Giants, praised his ex-boss. Years from now, Estes said, when Oracle Park has become a cherished antique like Fenway Park or Wrigley Field, “we can always pay respects to him whenever we want with a short pause on King Street.”

It’s widely accepted that Magowan’s signing of free-agent outfielder Barry Bonds before the 1993 season revitalized the franchise and set in motion the events that led to the construction of Oracle Park (then Pacific Bell Park).

“The best baseball park in the world,” roared broadcaster Mike Krukow, the event’s co-emcee. “And it would not be done without his vision and his passion.”

Magowan relinquished his title as managing general partner to Bill Neukom in 2008. But under Magowan’s watch, the Giants took several steps toward joining the Major Leagues’ elite.

Magowan approved general manager Brian Sabean’s hiring of manager Bruce Bochy following the 2006 season. Bochy, as the entire baseball world knows by now, will retire after Sunday’s regular-season finale, having reached baseball’s pinnacle with that trio of World Series titles.

“I sure owe him a lot for his support, especially through the first couple of years,” said Bochy, whose first two Giants clubs finished 72-90 in 2007 and 71-91 in 2008. “Those were tough years.”

Magowan also challenged Sabean to improve San Francisco’s success in the Draft. From 2006-08, the Giants’ first-round selections were right-hander Tim Lincecum, left-hander Madison Bumgarner and catcher Buster Posey, who excelled while playing for all three of San Francisco’s World Series-winning teams.

Seated in the audience was a who’s who of Giants, including Hall of Famers Willie Mays and Juan Marichal, Bonds, Ryan Vogelsong, Felipe Alou, Dave Dravecky, Ellis Burks, Noah Lowry, Tito Fuentes and the club’s broadcasters.