[1] He studied law at Oxford University, and was admitted to the English Bar in 1873.
In 1874 he left for South Australia, and was appointed Judge's Associate to Chief Justice, Sir R. D. Hanson by 1875.
From March to April 1878 he served as Acting Master of the Supreme Court during the leave of absence of William Hinde.
[8] In February 1923 they returned to London by the SS Macedonia, living at Earl's Court, and died within a year of each other.
Grundy married Sarah Elizabeth "Lisa" Hanson (23 February 1853 – c. 15 January 1930),[11] eldest daughter of Sir R. D. Hanson, former Chief Justice of South Australia (died 4 March 1876), at St Johns Church, Adelaide, on 6 July 1876.