Sir William Lyons, known as "Mr. Jaguar", was with fellow motorcycle enthusiast William Walmsley, the co-founder in 1922 of the Swallow Sidecar Company, which became Jaguar Cars Limited after the Second World War.
- Occupation
- entrepreneur, engineer, car designer
- Citizenship
- United Kingdom
- Born
- September 4, 1901
- Died
- February 8, 1985