Question: Where did Josiah Boothby's father study?

Knowledge 1: Josiah Boothby
Josiah Boothby CMG (1837–1916) was a public administrator in the colony of South Australia.Boothby was the fifth son of the Benjamin Boothby (who later became a judge in the Supreme Court of South Australia), and was born at Nottingham on 8 April 1837.He went to the colony with his father in 1853, and in that year became Clerk in the Colonial Secretary's Office, Clerk in the Audit Office in 1854, Chief Clerk in the Audit Office in 1856, Chief Clerk in the Chief Secretary's Office in 1859, also Government statist and Superintendent of Census in 1860, Assistant Secretary and Government Statist in 1866, and Under Secretary and Government Statist in 1868.He was elected Corresponding Member of the Statistical Society, London, in 1869; was appointed Trustee of the Savings Bank, South Australia, in 1869; a Commissioner for International Exhibitions in 1872; joint editor of a work "South Australia: its History, Resources, and Productions," published by authority of Government in 1876, and Executive Commissioner representing South Australia at the Paris Universal Exhibition in 1878, in connection with which he was created C.M.G., and received the Cross of the Legion of Honour.Owing to a dispute in connection with the expenses of the Paris Exhibition he retired from the public service of South Australia in 1880. [SEP] Knowledge 2: Benjamin Boothby
Benjamin Boothby (5 February 1803 – 21 June 1868) was a South Australian colonial judge, who was removed from office for misbehaviour, one of four Australian supreme court judges removed in the 19th century.Boothby was born in Doncaster, Yorkshire.He assisted Sir Thomas Wilde in his electoral campaigns and read in his chambers.He was called to the Bar at Gray's Inn in 1825.In 1853, Boothby was appointed a Judge of the Supreme Court of South Australia.This was the last appointment of a South Australian judge by the Colonial Office.Boothby, in a series of judgments, adopted a pedantic approach to Imperial Law, holding a number of South Australian statutes invalid, including the Real Property Act 1857, which introduced the Torrens system of land registration in South Australia.Boothby also asserted that the Parliament of South Australia had not been validly constituted since the enactment of the Constitution Act 1855-56.In 1865, partly in response to the approach taken by Boothby, the Imperial Parliament passed the Colonial Laws Validity Act, confirming the authority of the colonial Parliament to pass legislation different from that passed by the Imperial Parliament.However, Boothby continued to create difficulties, refusing to acknowledge the authority of the Attorney-General and challenging the legality of the appointments of the other two Judges of the Supreme Court on the basis that only British-trained barristers could be appointed.Proceedings were commenced to remove Boothby from office on the ground of misbehaviour.The charges were found proved and the Judge was "amoved" on 29 July 1867.Boothby took formal steps to appeal this decision to the Privy Council, but died before the appeal was heard.
Knowledge 1: Josiah Boothby
Josiah Boothby CMG (1837–1916) was a public administrator in the colony of South Australia.Boothby was the fifth son of the Benjamin Boothby (who later became a judge in the Supreme Court of South Australia), and was born at Nottingham on 8 April 1837.He went to the colony with his father in 1853, and in that year became Clerk in the Colonial Secretary's Office, Clerk in the Audit Office in 1854, Chief Clerk in the Audit Office in 1856, Chief Clerk in the Chief Secretary's Office in 1859, also Government statist and Superintendent of Census in 1860, Assistant Secretary and Government Statist in 1866, and Under Secretary and Government Statist in 1868.He was elected Corresponding Member of the Statistical Society, London, in 1869; was appointed Trustee of the Savings Bank, South Australia, in 1869; a Commissioner for International Exhibitions in 1872; joint editor of a work "South Australia: its History, Resources, and Productions," published by authority of Government in 1876, and Executive Commissioner representing South Australia at the Paris Universal Exhibition in 1878, in connection with which he was created C.M.G., and received the Cross of the Legion of Honour.Owing to a dispute in connection with the expenses of the Paris Exhibition he retired from the public service of South Australia in 1880. [SEP] Knowledge 2: Benny Rubinstein
Benny Rubinstein is a former Israeli footballer who played in Maccabi Netanya and Hapoel Netanya, who now works in Real estate development.http://www.haaretz.com/print-edition/real-estate/where-did-the-millions-go-1.302730Benny's son, Aviram also played football for Maccabi Netanya.
Knowledge 1: Benjamin Boothby
Benjamin Boothby (5 February 1803 – 21 June 1868) was a South Australian colonial judge, who was removed from office for misbehaviour, one of four Australian supreme court judges removed in the 19th century.Boothby was born in Doncaster, Yorkshire.He assisted Sir Thomas Wilde in his electoral campaigns and read in his chambers.He was called to the Bar at Gray's Inn in 1825.In 1853, Boothby was appointed a Judge of the Supreme Court of South Australia.This was the last appointment of a South Australian judge by the Colonial Office.Boothby, in a series of judgments, adopted a pedantic approach to Imperial Law, holding a number of South Australian statutes invalid, including the Real Property Act 1857, which introduced the Torrens system of land registration in South Australia.Boothby also asserted that the Parliament of South Australia had not been validly constituted since the enactment of the Constitution Act 1855-56.In 1865, partly in response to the approach taken by Boothby, the Imperial Parliament passed the Colonial Laws Validity Act, confirming the authority of the colonial Parliament to pass legislation different from that passed by the Imperial Parliament.However, Boothby continued to create difficulties, refusing to acknowledge the authority of the Attorney-General and challenging the legality of the appointments of the other two Judges of the Supreme Court on the basis that only British-trained barristers could be appointed.Proceedings were commenced to remove Boothby from office on the ground of misbehaviour.The charges were found proved and the Judge was "amoved" on 29 July 1867.Boothby took formal steps to appeal this decision to the Privy Council, but died before the appeal was heard. [SEP] Knowledge 2: Benny Rubinstein
Benny Rubinstein is a former Israeli footballer who played in Maccabi Netanya and Hapoel Netanya, who now works in Real estate development.http://www.haaretz.com/print-edition/real-estate/where-did-the-millions-go-1.302730Benny's son, Aviram also played football for Maccabi Netanya.

Answer: Gray's Inn