Thomas Insley to James Henry Iredale - 1911 Census household returns
- Thomas Insley to George Insley Sen
- Harry James Insley Sen to Edwin Inson
- Emily Sophia Helen Inson to Arthur Instance
- Charles Instance to Claude Harcourt Inston
- Edward Inston to Ada Instone
- Albert Instone to Ellen Instone
- Emily Sarah Instone to John Lloyd Instone
- John William Instone to Thomas Instone
- Thomas Instone to Harry Instrell
- Henry Instrell to John Insull
- John Edward Insull to George Frederick Intoul
- Alberto Intrepidi to William Invine
- Edmund Hodgson Inving to William Inward
- William Gascoyne Inward to Joseph Inwards
- Joseph Inwards to Alfred Inwood
- Alfred Inwood to Charles Inwood
- Charles A Inwood to Ernest John Inwood
- Ernest William Inwood to George Beardsall Inwood
- George F Inwood to James Inwood
- James Inwood to Jonathan Inwood
- Joseph Inwood to Thomas Inwood
- Thomas Inwood to William Inwood
- William Inwood to Ann Ion
- Annie Ion to Joseph Ed Ion
- Joseph Henry Ion to Isabel Ionides
- Luke George Ionides to John William Ions
- John William Durrant Ions to Annie Iorns
- Charles Risbee Iorns to Charles Leonard Irby
- Ernest J F Irby to Annie Iredale
- Annie Elizabeth Iredale to Charles William Iredale
- Charlie Iredale to Florence Iredale
- Florence Mary Iredale to George Wright Iredale
- Hannah Iredale to James Henry Iredale