Alethia Tanner

Alethia “Lethe" Browning Tanner was born in 1781 on a plantation owned by Tobias and Mary Belt, in Prince George's County, Maryland. Alethia had two sisters, Sophia (Bell)[1] and Laurena (Cook). Upon the death of Mary Pratt (Tobias had predeceased his wife) in 1795, the plantation, known as Chelsea Plantation was inherited by their daughter Rachel Belt Pratt. Mary Belt's will stipulated that Laurena be sent to live with a sibling of Rachel Pratt's while Sophia and Alethia were to stay at the Chelsea Plantation.

At some point, both Sophia and Alethia grew and sold vegetables at markets in Alexandria and Washington, D.C. Alethia sold vegetables at a market across from the White House. A doctor's bill for Thomas Jefferson[2] indicates that Alethia may have worked in the White House during Thomas Jefferson's presidency, though the details of her service are unknown. This is further supported by the fact that Joseph Doughtery, the man who purchased Alethia from Rachel Prattwas, served as Thomas Jefferson's footman while Jefferson was President. Some historians believe that Alethia gave the funds to Doughtery so that he could purchase her and then manumit, or free, her. Doughtery manumitted Aletha a few days after he purchased her. One of the witnesses on her manumission papers in 1810 was William Thornton, the architect of the US Capitol.

In 1826, and for several years after, Alethia was able to save enough money to purchase the freedom for her sister Laurena, Laurena's husband, their children, and many of her family and friends. Among Laurena's children was John Francis Cook, Sr., who became schoolmaster of Union Seminary, where he would establish the church and serve as its first pastor. He also founded the Young Man's Moral and Literary Society, an antebellum abolitionist debating society for free and enslaved blacks, and co-founded Union Bethel AME Church and Fifteenth Street Presbyterian Church. During the Snow Riot of 1835, Cook temporarily fled the city, when a white mob attacked and burned down the one-room schoolhouse.

Alethia led a remarkable life. She was a business woman, owned real estate, and was a supporter and sponsor of educational and religious institutions for the free black community in Washington DC. She was a Methodist church member in part because she was drawn to their position on slavery. Later, she and other African American former slaves left the church, finding it unwelcoming because they did not want to be confined to the galleria in the church. Alethia and her sister and her sister's husband joined Israel Bethel African Methodist Episcopal Church and later purchased it when it was being sold in auction. When she died she was a member of Union Bethel Church which was established with the help of her nephew John Francis Cook Sr.

Altheia, George, Nicholas Franklin and Moses Liverpool started the first school for free black children in the District of Columbia, called The Bell School, in 1807. The Bell School failed from lack of funding and a small student base, leading to the formation of The Resolute Beneficial Society School. This school like the last failed, largely attributed to limitations caused by segregation. Smaller private schools were then opened. Alethia's safety was in danger due to the Snow Riot in August 1835, which started as a labor strike but extended into attacks on free blacks. Her nephew John Francis Cook fled, but there was no record of her fleeing the area.

Tanner Park, a 2.5-acre park in the NoMa neighborhood of Washington, DC, was named after Alethia Tanner by a community vote in 2020.[3]

• Louisa Parke Costin

• Sharp, John G, Washington D.C Genealogy Trails Biographies. 2006-2013
• Jessie Carney Smith, ed. (1996). Notable Black American Women, book 2. Detroit, USA: Gale Research Incorporated. p. 625. ISBN 0-8103-9177-5.