of 1937. He and Thelma had three sons (he had one other son with his first wife, Lillian). During the 1930s, Einstein became so inextricably linked with his character that he attempted—unsuccessfully—to change his name legally to Parkyakarkus; a judge denied his request. His star on the Hollywood Walk of Fame bears his character's name instead of his own. Meet Me at Parky's As a result of his popularity on the Cantor program, Einstein began a radio show of his own in 1945 called Meet Me at Parky's, featuring the same character, Greek restaurant owner Nick Parkyakarkus. It ran for two seasons on NBC before moving to the Mutual Broadcasting System in 1947 for a third and final season. Einstein wrote most of the program's scripts himself. Sheldon Leonard, Elliott Lewis, and Betty Rhodes were part of the cast, with Rhodes augmenting her support acting as a female singer. Later years and death Einstein had a history of heart disease, which limited his mobility and stamina. After his radio show was terminated, his appearances were largely confined to Friars' Club roasts. He suffered a fatal heart attack on Sunday, November 23, 1958, at age 54, during a roast in honor of actress/comedienne Lucille Ball and Desi Arnaz. After Einstein delivered his monologue, emcee Art Linkletter remarked, "Every time he finishes, I ask myself, why isn't he on the air in a prime time?" Einstein turned to Milton Berle, who was seated next to him on the dais, and said, "Yeah, how come?"—then slumped into his lap. Berle's shout of "Is there a doctor in the house?" was initially thought to be a humorous ad lib (the event was a charity benefit for local hospitals and several physicians were in attendance), but the gravity of the situation quickly became clear. Einstein was carried backstage, where five physicians worked to revive him. One surgeon used his pen knife to make an incision for open heart massage; another used the ends of an electric cord as a makeshift defibrillator. With the remaining comedians on the bill reluctant to continue under the circumstances, Art Linkletter asked Tony Martin to sing a song; Martin's unfortunate choice was "There's No Tomorrow". Ball then came to the microphone and managed only, "I can say nothing," through tears. Arnaz, the closing speaker, said, "This is one of those moments that Lucy and I have waited a lifetime for,