“When I met Pop at the old stadium, he had a booth in the back of my pizza station, Main 11,” Alva Robinson said. “We got to be friends — swapping pizza and pictures. I do popcorn now. I’m the popcorn lady. But I always made sure Pop had his ice water, soda.”

Pop went by other names at the stadiums where he took pictures for most of the last 55 years. Señor. Magic (Lens). Or simply, Lou. In the backstages of the city’s ballparks, which run on a barter economy of small favors and easy smiles, scores of people who didn’t know what else to call him were part of his everyday life for decades.

Many of them turned out at the Greenwich Village Funeral Home on Tuesday where his full name and the dates that staked out the 93-year span of his life were listed on a digital display: Louis Requena, Dec. 12, 1919 - June 20, 2013.

“Eleven years ago, first day I’m shooting a game for The A.P., and I’m pretty anxious, and my editor says, ‘find this older guy,’ ” said Frank Franklin, a photographer for The Associated Press. “He showed me around, made everything smooth. First inning, there was a play at the plate, runner sliding under the tag. That was the picture, and he nailed it. He was in his 80s.”