Paul Magel (paulmagel @t shaw.ca) of Winnipeg, MB, Canada, writes Alfred James Gurr (butler, then dairyman) of Paddington had three sons, one of which (Alfred Richard Gurr) attended Christ's Hospital Hertford in 1861, according to census records.  His brother Henry Jonathan Gurr who was two years younger may also have attended there in the early 1860's,and is known to have gone to sea at the age of about 14. He eventually got third officer papers, so he may have attended the Mathematical School. A third brother Edwin Robert who was two years younger than Henry may also have attended in the 1860's, though this is less likely.

Do you have any information confirming that either one attended and what years? Also what might they have studied and how did they fare? Who recommended their acceptance?.

Unfortunately the records of many schools have not survived and I am afraid this appears to be the case for 19th century pupil records of Christ's Hospital. Hertford. The school moved to Horsham, West Sussex early in the 20th century (See Wikipedia entry) and I understand has no pupil records from before the move. HALS and the Hertford Museum both have some records relating to the school (see Access to Archives) but there is nothing in their holdings that would seem to provide any hope of pupils being named. There was a significant holdings relating to the Charity in London at the Guildhall library  (the document section is now held in the London Metropolitan Archives) and I am pretty sure that they don't have any pupil records from the Hertford School. (The Library has an online document summarising their holdings including books.)

However Alfred Richard Gurr's application was probably processed in London, and so it could be worth you while contacting the London Metropolitan Archives. If you do contact the Library and they do have something relevant please let me know as it would help me to advise people with similar queries.