Alexander Turney Stewart is known as the creator of the department store. He make a fortune in business, but the most interesting parts of his life story come at the end – including after he died. 
Research:

“Act of Congress Establishing the Treasury Department.” U.S. Department of the Treasury. https://home.treasury.gov/history/act-of-congress-establishing-the-treasury-department
“A.T. Stewart’s Body.” New York Daily News. Aug. 17, 1879. https://www.newspapers.com/image/329793880/?terms=%22Alexander%20T.%20Stewart%22&match=1
“Alexander T. Stewart.” New York Times. April 11, 1876. https://timesmachine.nytimes.com/timesmachine/1876/04/11/80328682.pdf?pdf_redirect=true&ip=0
Asbury, Herbert. “The Gangs of New York.” Wisehouse Classics. 2023 edition.
Britannica, The Editors of Encyclopaedia. "Alexander Turney Stewart". Encyclopedia Britannica, 6 Apr. 2023, https://www.britannica.com/biography/Alexander-Turney-Stewart
Brockett, L. P. “Men of our day; or, Biographical sketches of patriots, orators, statesmen, generals, reformers, financiers and merch, including ants, now on the stage of action: including Those who in military, political, business, and social life are the prominent leaders of the time in this country.” Ziegler & McCurdy. Philadelphia. 1872.
DeRiggi, Mildred Murphy. “Alexander Turney Stewart.” Irish Lives in America. Royal Irish Academy. 2021.
“The Decision in the Stewart Will Case.” The Brooklyn Daily Eagle. Dec. 28, 1878. https://www.newspapers.com/image/50424282/?terms=%22Alexander%20T.%20Stewart%22&match=1
Fischler, Marcelle S. “An Immigrant's Vision Created Garden City.” New York Times. Nov. 15, 1998. https://www.nytimes.com/1998/11/15/nyregion/an-immigrant-s-vision-created-garden-city.html
Hubbard, Elbert. “Little Journeys to the Homes of Great Businessmen, Volume 11.” New York. 1916. Accessed online: https://www.gutenberg.org/files/23595/23595-h/23595-h.htm#A_T_STEWART
Lenoir, Andrew. “The Nearly Solved Mystery Behind the Missing Corpse of One of the Richest Men Ever.” Atlas Obscura. Oct. 27, 2016. https://www.atlasobscura.com/articles/the-nearlysolved-mystery-behind-the-missing-corpse-of-one-of-the-richest-men-ever
Resseguie, Harry E. “FEDERAL CONFLICT OF INTEREST: THE A. T. STEWART CASE: A Century-Old Episode With Current Implications.” New York History, vol. 47, no. 3, 1966, pp. 271–301. JSTOR, http://www.jstor.org/stable/23162709
Resseguie, Harry E. “Alexander Turney Stewart and the Development of the Department Store, 1823-1876.” The Business History Review, vol. 39, no. 3, 1965, pp. 301–22. JSTOR, https://doi.org/10.2307/3112143
“The Stewart Will Suit.” Boston Globe. June 26, 1878. https://www.newspapers.com/image/428231391/?terms=%22Alexander%20T.%20Stewart%22&match=1
“Stewart’s Body Sought.” New York Times. August 21, 1881. https://timesmachine.nytimes.com/timesmachine/1881/08/21/102756034.pdf?pdf_redirect=true&ip=0
Walling, George Washington. “Recollections of a New York Chief of Police.” Caxton Book Concern. New York. 1887. (Kindle edition)
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