From Smithsonian Magazine:
In the spring of 1902 a woman calling herself Cassie L. Chadwick—there was never any mention as to what the L stood for—took a train from Cleveland to New York City and a hansom cab to the Holland House, a hotel at the corner of 30th Street and Fifth Avenue internationally renowned for its gilded banquet room and $350,000 wine cellar. She waited in the lobby, tapping her high-button shoes on the Sienna marble floor, watching men glide by in their bowler hats and frock coats, searching for one man in particular. There he was—James Dillon, a lawyer and friend of her husband’s, standing alone.
She walked toward him, grazing his arm as she passed, and waited for him to pardon himself. As he said the words she spun around and exclaimed what a delightful coincidence it was to see him here, so far from home. She was in town briefly on some private business. In fact, she was on her way to her father’s house—would Mr. Dillon be so kind as to escort her there?
Dillon, happy to oblige, hailed an open carriage. Cassie gave the driver an address: 2 East 91st Street, at Fifth Avenue, and kept up a cheery patter until they arrived there—at a four-story mansion belonging to steel magnate Andrew Carnegie. She tried not to laugh at Dillon’s sudden inability to speak and told him she’d be back shortly. The butler opened the door to find a refined, well-dressed lady who politely asked to speak to the head housekeeper.
When the woman presented herself, Cassie explained that she was thinking of hiring a maid, Hilda Schmidt, who had supposedly worked for the Carnegie family. She wished to check the woman’s references. The housekeeper was puzzled, and said no one by that name had ever worked for the Carnegie family. Cassie protested: Was she absolutely certain? She gave a detailed physical description, rattled off details of the woman’s background. No, the housekeeper insisted; there must be some misunderstanding. Cassie thanked her profusely, complimented the spotlessness of the front parlor, and let herself out, slipping a large brown envelope out of her coat as she turned back to the street. She had managed to stretch the encounter into just under a half hour.
As she climbed into the carriage, Dillon apologized for what he was about to ask: Who was her father, exactly? Please, Cassie said, raising a gloved finger to her lips, he mustn’t disclose her secret to anyone: She was Andrew Carnegie’s illegitimate daughter. She handed over the envelope, which contained a pair of promissory notes, for $250,000 and $500,000, signed by Carnegie himself, and securities valued at a total of $5 million. Out of guilt and a sense of responsibility, “Daddy” gave her large sums of money, she said; she had numerous other notes stashed in a dresser drawer at home. Furthermore, she stood to inherit millions when he died. She reminded Dillon not to speak of her parentage, knowing it was a promise he wouldn’t keep; the story was too fantastic to withhold, and too brazen to be untrue. But she had never met Andrew Carnegie. Cassie Chadwick was just one of many names she went by....MORE