William Rowan Hamilton

Is your surname Hamilton?

Research the Hamilton family

William Rowan Hamilton's Geni Profile

Share your family tree and photos with the people you know and love

  • Build your family tree online
  • Share photos and videos
  • Smart Matching™ technology
  • Free!


William Rowan Hamilton

Birthplace: 38 Dominick Street, Dublin, Dublin, Ireland
Death: Died in Dublin, Ireland
Cause of death: severe gout
Place of Burial: Dublin, Ireland
Immediate Family:

Son of Archibald Hamilton and Sarah Hamilton
Husband of Helen Maria Hamilton
Father of William Edwin Hamilton; Archibald Henry Hamilton and Helen Eliza Amelia O'Regan
Brother of Grace Hamilton; Sydney Margaret Hamilton; Sara Susannah Hamilton and Archianna Hamilton

Occupation: Astronomer, mathemetician, invented Quaternions
Managed by: Philip William Watkins
Last Updated:

About William Rowan Hamilton

William Rowan Hamilton

Hamilton became professor of astronomy at TCD and royal astronomer of Ireland. Hamilton was a prodigy and knew 13 languages by the age of 9. He introduced the terms ‘scalar’ and ‘vector’ into mathematics, and he invented the method of quanternions as a new algebraic approach to 3D geometry. This turned out to be the seed of much modern algebra

Today there is a Crater Hamilton on the moon, in memory of this great mathematician.

  1. William Rowan Hamilton(1805–1865) by T.D. Spearman, School of Mathematics, Trinity College Dublin, proceedings of the Royal Irish Academy.(1995)
  2. Sir William Rowan Hamilton
  3. Wikipedia
  4. William Rowan Hamilton (Mathematician and Astronomer) Hamilton had a fascinating personality. He was described by friends as having "a buoyant cheerfulness and a kindly human-heartedness" and was legendary for his great courtesy and amiability. Women invariably found him charming and apparently attractive because of his obvious intelligence.
view all

William Rowan Hamilton's Timeline

August 4, 1805
Dublin, Dublin, Ireland
Age 28
Age 29
September 2, 1865
Age 60
Dublin, Ireland
September 1865
Age 60
Dublin, Ireland


here lie
the mortal remains
Royal Astronomer of Ireland
he was born Aug. 4, 1805
he died Sept. 2, 1865

in the love of God waiting for the mercy of
our Lord Jesus Christ unto eternal life
Jude 21
also of his sister

also of his daughter
wife of the venerable John O'Regan
born August 11, 1840
died June 21, 1870

and of her husband
the venerable JOHN O'REGAN
archdeacon of Kildare
born Christmas Day, 1817
died Good Friday April 8, 1898

[unclear word] Animae