Sarah Bradlee Fulton is sometimes called the Mother of the Boston Tea Party. But available information about her is basically a series of anecdotes, and can’t really be corroborated.
Research:

"The Boston Tea Party, 1773," EyeWitness to History, www.eyewitnesstohistory.com (2002).
“Boston Gazette Account.” http://www.boston-tea-party.org/account-boston-gazette.html
American Battlefield Trust. “Sarah Bradlee Fulton.” https://www.battlefields.org/learn/biographies/sarah-bradlee-fulton
Bell, J.L. “Inspecting the Tea Party House.”11/21/2019. https://boston1775.blogspot.com/2019/11/inspecting-tea-party-house.html
Bell, J.L. “The Legends of Sarah Bradlee Fulton.” Boston 1775. 11/20/2019. https://boston1775.blogspot.com/2019/11/the-legends-of-sarah-bradlee-fulton.html
Boston Globe. “Helen T. Wild.” Obituary. 7/27/1948. https://www.newspapers.com/image/433376820/?terms=%22Helen%20T.%20Wild%22&match=1
Boston Globe. “Painted Him For the Tea Party.” 12/17/1896. https://www.newspapers.com/image/430805744/
Boston Tea Party Ships & Museum. “Sarah Bradlee Fulton.” https://www.bostonteapartyship.com/sarah-bradlee-fulton
Brooks, Rebecca Beatrice. “The Daughters of Liberty: Who Were They and What Did They Do?” History of Massachusetts Blog. https://historyofmassachusetts.org/who-were-the-daughters-of-liberty/
Dorchester Athenaeum. “Sarah Bradlee Fulton.” https://www.dorchesteratheneum.org/project/sarah-bradlee-fulton/
Grinde, Donald A. “Exemplar of liberty : native America and the evolution of democracy.” American Indian Studies Center, University of California, Los Angeles. 1991.
Gruber, Kate Egner. “The Daughters of Liberty.” American Battlefield Trust. https://www.battlefields.org/learn/articles/daughters-liberty
Hewes, George R. T. “A Retrospect of the Boston Tea-party, with a Memoir of George R.T. Hewes” (New York: 1834), 37-41. https://www.americanyawp.com/reader/the-american-revolution/george-r-t-hewes-a-retrospect-of-the-boston-tea-party-1834/
New England Historical Society. “How the Daughters of Liberty Fought for Independence.” 2022. https://newenglandhistoricalsociety.com/daughters-liberty-fought-independence/
Norton, Mary Beth. “Liberty's daughters : the Revolutionary experience of American women, 1750-1800.” Harper Collins. 1990.
Reed, Esther. “Sentiments of An American Woman, 1780.” https://www-personal.umd.umich.edu/~ppennock/doc-Sentiments%20of%20An%20American%20Woman.htm
The Freedom Trail. “Old South meeting House.” https://www.thefreedomtrail.org/trail-sites/old-south-meeting-house
Tryon, Rolla Milton. “Household Manufactures in the United States, 1640-1860.” University of Chicago. January 1917. https://play.google.com/store/books/details?id=xwNOAAAAMAAJ&rdid=book-xwNOAAAAMAAJ&rdot=1
Wild, Helen T. “Sarah Bradlee Fulton. Dorchester, 1740. Medford, 1835.” American Monthly, Washington, D. C. Via Medford Historical Society: Medford Historical Society Papers, Volume 1. https://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext%3A2005.05.0001%3Achapter%3D18%3Asection%3Dc.18.19%3Apage%3D53#note1
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