- Detailed Facts for Herbert Samuel OLDKNOW and Eleanor Florence AVERY
- Born December 1890 in Hampshire, England
- Residence 1891 in Portsea, Hampshire, England
- Residence 1901 in Milton, Kent, England
- Residence 2 April 1911 in Barri, Glamorgan, Wales
- with Eleanor Florence AVERY:
Married circa July 1922 in Lewisham, Kent, England
- Child: Audrey Beryl OLDKNOW:
Born 30 April 1924 in Greenwich, Kent, England
- Child: Jean Avril OLDKNOW:
Born 4 April 1928 in Lewisham, Kent, England
- Residence 1931 in Lewisham, Kent, England
- Residence 1952 in Michigan City, La Porte County, Indiana, USA
- Residence 1954 in Michigan City, La Porte County, Indiana, USA
- Died circa September 1992 in La Porte, Indiana, USA