Sir Roger Martyn (Lord Mayor of London 1567)
Sir Roger Martyn( or Martin) was a mercer and Lord Mayor of London in 1567; he was also Sheriff of London in 1559.
Cavalié Mercer
Alexander Cavalié Mercer (28 March 1783 – 9 November 1868) was a British artillery officer.
Although he rose to the rank of general, his fame is as commander of G Troop Royal Horse Artillery in the thick of the fighting at the Battle of Waterloo, and as author of "Journal of the Waterloo Campaign".
Mercer's six-gun horse artillery troop arrived too late for the Battle of Quatre Bras, but it fought with the cavalry rearguard covering the army's retreat to Waterloo.
The troop fought on the extreme right wing of Wellington's army at Waterloo, before being moved into the thick of the fighting nearer the centre of the line.
There it beat off repeated charges by French heavy cavalry, disobeying orders to abandon the guns and retire inside nearby infantry squares as the enemy closed.
The location of this action is marked by a memorial on the Waterloo battlefield.
After the battle, Mercer's troop marched on Paris with the Allied armies, and formed part of the army of occupation.
Mercer's "Journal" is an important source for historians of the Waterloo campaign, as well as a detailed description of the landscape and people of Belgium and France in the early 19th century.
It is one of the few accounts of the period written by an artillery officer.
Mercer remained in the peacetime army, twice serving in Canada.
He was a painter of some merit, and a number of his watercolours of Canadian landscapes were purchased by the National Gallery of Canada in the 1980s.
Peters Brook (Stony Brook tributary)
Peters Brook is a tributary of Stony Brook in Mercer and Hunterdon counties, New Jersey in the United States.
Sergio Rigoni
Sergio Rigoni( born 27 April 1986) is an Italian cross- country skier who competes internationally.
He represented Italy at the 2018 Winter Olympics.
Robert Suckling
Robert Suckling( 1520– 1589), of St. Andrew's, Norwich, Norfolk, was an English politician, mercer and merchant adventurer.
He was a Member of Parliament( MP) for Norwich in 1571 and 1586.
John Roysse
John Roysse( 1500/01–1571) was an English Mercer and benefactor of Abingdon School in Abingdon, Oxfordshire.
John Blakiston
John Blakiston( c. 1603 – 1649), was a member of the English parliament, one of the regicides of King Charles I of England, a prominent mercer and coal merchant, puritan and anti-Episcopalian.
Thomas Child (MP)
Thomas Child( died 1413) was a mercer and the member of the Parliament of England for Salisbury for the parliament of 1407.
He was also reeve and constable of Salisbury.
Dugès
Several people share the surname Dugès:
John Mathew (MP)
John Mathew( by 1469 – 1540/1550), of Shaftesbury, Dorset, was an English mercer and Member of Parliament.
He was a Member( MP) of the Parliament of England for Shaftesbury in 1529.

Question: Do Cavalié Mercer and Sergio Rigoni share the same nationality?
Answer: no