The surname Munn was first found in Kent where they held a family seat at Maidstone in that shire. They were descended from Guillaume (William) de Moyon a Norman Baron whose seat was at the castle of Moion, near St. Lo in Normandy.
  William de Moyon received large grants of land in Somerset, the Lordship of Clehangre in Devon, and Sutton in Wiltshire. He also had grants in Kent. From William was descended the first Earl of Somerset, the Earls of Dorset and the Barons of Okehampton. “At the period of the Conquest, this town [now called Minehead], then called Manheved, was given by William [the Conqueror] to William de Mohun.”

  Although the main stem of this very noble Norman family retained the various spellings of Munn or Munns, junior lines adopted the name Munson or Munnings. The same William de Mohun (Moyon) held estates in Dunster, Somerset. ” The town, which is called Torre in Domesday Book, owes its origin to a baronial castle built here by William de Mohun, a Norman Baron, on whom the Conqueror had bestowed large estates in this part of the kingdom. The castle, which was held by the family of Mohun till the reign of Edward III., was the scene of hostilities in the civil wars of the reigns of Stephen and John, and in the contests between the houses of York and Lancaster; the Marquess of Hertford, also, took possession of it for Charles I. during the war with the parliament.”

Outstanding amongst the family at this time was Sir Reginald Mohun, 1st Baronet (ca.1603-1642), an English politician who sat in the House of Commons in 1625 and 1626; John Mohun, 1st Baron Mohun of Okehampton (1595-1641), an English politician; Warwick Mohun, 2nd Baron Mohun of Okehampton (1620-1665), an English politician; Michael…

Munn settlers in the United States in the 17th century

  • Hollibury Munn settled in Barbados in 1654
  • Margaret Munn arrived in Virginia in 1663
  • Mathew Munn settled in Maryland in 1663
  • Christian Munn settled in New York in 1740

 

Munn settlers in the United States in the 19th century

  • William Munn settled in New York City in 1811
  • David Munn arrived in NYC in 1812
  • John Munn settled in Missouri in 1840
  • Peter Munn, aged 25, landed in New York, NY in 1848