Sir William Rowan HAMILTON ¹

  General Notes:

http://en.wikipedia.org/wiki/William_Rowan_Hamilton
Hamilton was the fourth of nine children born to Sarah Hutton (1780'961817) and Archibald Hamilton (1778'961819), who lived in Dublin at 38 Dominick Street. Hamilton's father, who was from Dunboyne, worked as a solicitor. By the age of three, Hamilton had been sent to live with his uncle James Hamilton, a graduate of Trinity College who ran a school in Talbots Castle in Trim Co Meath

Anne van Weerden <a.vanweerde AT uu.nl>
And Hamilton's mother was Sarah Hutton, his extensive family tree can be found here:
<https://archive.org/stream/lifeofsirwilliam01gravuoft#page/n25/mode/2up>
4 siblings died young, his sister Sydney died after Graves finished the biography, in 1889: <https://www.flickr.com/photos/porkynz/6177207972/>


http://en.wikipedia.org/wiki/William_Rowan_Hamilton
<https://archive.org/stream/lifeofsirwilliam01gravuoft#page/n25/mode/2up> and
<https://archive.org/stream/lifeofsirwilliam01gravuoft#page/n25/mode/2up>
Astronomer and mathematician
Andrews Professor of Astronomy at Dublin and Royal Astronomer. Inventor of quaternions. See his entry in DNB.

Inscription St Jerome Cemetery, Dublin

here lie
the mortal remains
of
SIR WILLIAM ROWAN HAMILTON
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
ARCHIANNA P.H. HAMILTON

also of his daughter
HELEN E.A. HAMILTON
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

Love is the following of the Law

erected by his surviving family

William married Helen Maria BAYLY, daughter of Rev Henry O'Neale BAYLY and Anne Penelope GRUEBER, in 1833 in Ballinaclough, Nenagh, Co Tipperary, Ireland. (Helen Maria BAYLY was born in 1804 and died on 2 Jun 1869.)