Jane Therese for The New York TimesLillian Greenblatt Braun in the Alliance Colony cemetery. PITTSGROVE, N.J. - Lillian Greenblatt Braun's 100th birthday party-cum-homecoming began, appropriately enough, with a trip to the graveyard. Leaning on a niece's arm in the bright sunshine on a recent Sunday, Mrs. Braun walked along the tombstones in the cemetery of the old Jewish agricultural colony of Alliance, deep in southern New Jersey. "That's my mother," she said, pausing at a stone inscribed in English and Hebrew. "Here's Uncle Benny." The next plot was a blank patch of grass. "Yes, and I'm here." The niece,...