Mary Ann McCracken (1770–1866) was an influential Irish social reformer, abolitionist, philanthropist, businesswoman, and champion of workers’ rights. She is best known for her lifelong commitment to social justice in Belfast and for being the sister of United Irishman Henry Joy McCracken.

Key Highlights

• United Irishmen & 1798 Rebellion:

Mary Ann supported the democratic and egalitarian ideals of the United Irishmen. She actively assisted her brother during the 1798 rebellion and famously walked with him to the scaffold after his execution order.

• Anti-slavery activism:

She was a leading voice in Belfast’s anti-slavery movement and continued campaigning into her 80s and 90s, distributing anti-slavery leaflets at the docks to discourage trade with slave-produced goods.

• Social reform & child welfare:

Mary Ann ran a Lancasterian school for poor children, campaigned against child labour in mills, and supported initiatives for better housing, education, and social welfare.

• Women’s rights:

Though not part of a formal women’s movement, she was an early advocate for women’s autonomy, economic independence, and education.

• Longevity & legacy:

She lived to 96, witnessing huge political and social change, and remained active in charitable work until her death.