Arthur Gelb, the longest-serving employee in The New York Times’ history, watched the paper’s exodus from its West 43rd Street stronghold with a mix of nostalgia and wry detachment. The farewell party was part newsroom rave, part historical requiem—Joe Sexton sweating out dance moves while Gelb, ever the institutional memory, reflected on an era of switchboard gossip, valet-guarded publisher suites, and newsroom terrors named Abe Rosenthal.