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Marcus Mumford

Author

Mason Cooper

Updated on December 29, 2025

Optimus Alive 2012 Music Festival - Day 2

Mumford in 2012, photo by prphotos.com

Birth Name: Marcus Oliver Johnstone Mumford

Place of Birth: Yorba Linda, Orange, California, United States

Date of Birth: January 31, 1987

Ethnicity: English, some Scottish

Marcus Mumford is an English and American singer, songwriter, musician, and record producer. He is the lead singer, guitarist, and drummer of rock band Mumford & Sons.

Marcus was born in Yorba Linda, Orange, California, the son of Eleanor M. W. (Weir-Breen) and John A. Mumford. His parents were leaders in the neocharismatic evangelical Vineyard Churches. In an interview, Marcus said that his family is “all English.” While both of Marcus’ parents were from England, his maternal grandfather was Scottish. His family moved back to England when Marcus was six months old, and he was raised in Wimbledon Chase, southwest London. Marcus is married to actress Carey Mulligan, with whom he has three children.

Marcus’ maternal grandfather was James Johnstone Weir Breen (the son of William Weir Breen and Crichton Jane Isabel Pryde). James was Scottish, born in Glasgow, Scotland. The surname Breen is usually Irish.

Marcus’ maternal grandmother was named Mary Barrow-Williams. Mary’s surname might indicate Welsh ancestry.

Sources: Marriage records of Marcus’ parents – 

Genealogy of Marcus Mumford (focusing on his mother’s side) –

Marriage record of Marcus’ maternal grandparents, James Johnstone Weir Breen and Mary Barrow-Williams – 

Genealogy of Marcus’ maternal grandfather, James Johnstone Weir Breen –