Origins & Early Life

Kathleen Rita Antonelli (née McNulty; formerly Mauchly; 12 February 1921 – 20 April 2006), known as Kay McNulty, was an Irish computer programmer and one of the six original programmers of the ENIAC, one of the first general-purpose electronic digital computers. The other five ENIAC programmers were Betty Holberton, Ruth Teitelbaum, Frances Spence, Marlyn Meltzer, and Jean Bartik. She was born Kathleen Rita McNulty in Feymore, part of the small village of Creeslough in what was then a Gaeltacht area (Irish-speaking region) of County Donegal in Ulster, the northern province in Ireland, on February 12, 1921, during the Irish War of Independence. She was the third of six children of James and Anne (née Nelis) McNulty.

Pivotal Works & Achievements

On the night of her birth, her father, an Irish Republican Army training officer, was arrested and imprisoned in Derry Gaol for two years as he was a suspected member of the IRA. On his release, the family emigrated to the United States in October 1924 and settled in the Chestnut Hill section of Philadelphia, Pennsylvania, where he found work as a stonemason. At the time, Kathleen McNulty was unable to speak any English, only Irish; she would...

Enduring Legacy & Impact

The historical impact and works continue to influence the modern world.

Contemporary Figures & Related Historical Timelines

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• Aaron Spelling — Contemporary (Died in 2006) (2006): Pioneering American producer of hit TV series like Dynasty and Beverly Hills, 90210.
• Alfredo Stroessner — Contemporary (Died in 2006) (2006): Paraguayan military dictator who ruled from 1954 to 1989, known for repression.
• Anthony Franciosa — Contemporary (Died in 2006) (2006): Versatile American actor known for stage breakthroughs and film success.
• 13th Dalai Lama — Shared historical date (02-12 · Born) (1876): Spiritual leader of Tibet who championed national independence and modernization.
• Abraham Lincoln — Shared historical date (02-12 · Born) (1809): 16th President of the United States; guided the nation through the Civil War.
• 3rd Dalai Lama — Shared historical date (04-20 · Died) (1588): Founding figure of the Dalai Lama lineage, pivotal to Gelug school's rise in Tibet.
• Billy Magnussen — Shared historical date (04-20 · Born) (1985): American actor known for film roles in 'Aladdin' and 'Bridge of Spies'
• 1921 Historical Timeline & Archive — Explore world events and figures from 1921
• February 12 (02-12) On This Day — Historical birthdays and events on February 12
• 2006 Historical Timeline & Archive — Explore world events and figures from 2006
• April 20 (04-20) On This Day — Historical events and memorials on April 20