Thomas Tompion (1639–1713) was an English clock maker, watchmaker and mechanician who is still regarded to this day as the Father of English Clockmaking. Tompion's work includes some of the most historic and important clocks and watches in the World and can command very high prices whenever outstanding examples appear at auction. A plaque commemorates the house he shared on Fleet Street with his equally famous pupil and successor George Graham.Tompion's apprentices included George Allett, Edward Banger, Henry Callowe (Callot), Daniel Delander, Richard Emes, Ambrose Gardner, Obadiah Gardner, William Graham (nephew of George Graham), George Harrison, Whitestone Littlemore, Jeremiah Martin, Charles Molins (Molyns), William Mourlay, Charles Murray, Robert Pattison, William Sherwood, Richard Street, Charles Sypson, William Thompson, James Tunn and Thomas White many of whom became important makers and workmen in their own right.
George Graham (7 July 1673 – 20 November 1751) was an English clockmaker, inventor, and geophysicist, and a Fellow of the Royal Society.He was born in Kirklinton, Cumberland. A Friend (Quaker) like his mentor Thomas Tompion, Graham left Cumberland in 1688 for London to work with Tompion. He later married Tompion's niece, Elizabeth Tompion.