Here is a bit of fascinating info:
According to a long account following his death, given in the local newspaper, the Windsor and Eton Express, of 21 June 1860, John Hulbert Glover was the son of a footman to King George III, his grandfather was a bookbinder, and his mother a book sewer in the bindery department of the Royal Library. Windsor Library (firstname.lastname@example.org
) holds copies of the local newspaper. The Royal Archives does not have any record of John Glover’s grandfather or mother, but has some references to a George Glover, who was a Footman to Queen Charlotte from c.1774 probably until his death on 19 July 1792.
John Glover’s successor as Librarian recorded that he had originally been an apprentice to the Binder in King George III’s library at Buckingham Palace, and was trained by the then Librarian as one of his Assistants. In 1823 King George IV presented his father’s library to the British Museum, and Glover, along with his some of his colleagues moved to the Museum to continue working on the library. However, King William IV set up a new Royal Library at Windsor Castle, and Glover returned to work on this, first as Assistant Librarian and Keeper of Prints and Drawings, and finally, from July 1836, as Librarian and Keeper of the Prints and Drawings. He continued in this position until his death at his house adjoining Buckingham Palace on 23 May 1860, his death being reported to the Queen by his son, the Reverend John Hulbert Glover. Queen Victoria noted in her Journal that day: “…Deeply grieved to hear that poor good Mr Glover died at 2 today. A great loss. He was most kind, devoted, thoroughly trustworthy, painstaking, and very loyal in his devotion to us all.”. John Glover was buried at Slough.
Also, there are 3 inserts in the Times (25 May, 26 May, 31 May 1860)wrt his death.