George William Iliffe to Percy Illingworth - 1911 Census household returns
- George William Iliffe to John Iliffe
- John Iliffe to Richard Iliffe
- Richard Iliffe to Tom Iliffe
- Tom Alfred Soden Iliffe to Ethel Ilingworth
- Henry Iliowizi to Frederick Illger
- Walter Illger to Herbert Illidge
- Hubert Illidge to William Illidge
- William Illidge to Edward Richard Illing
- Ellen Illing to Rosetta Illing
- Sophia Illing to Walter Illingsworth
- Walter Illingsworth to Albert Illingworth
- Albert Illingworth to Amos Illingworth
- Amos Illingworth to Arney Illingworth
- Arnold Illingworth to Ben Illingworth
- Ben C Illingworth to Charles Illingworth
- Charles Illingworth to Clifford Illingworth
- Cyrus Illingworth to Eli Illingworth
- Eliza Illingworth to Emma Illingworth
- Emma Illingworth to Frank Illingworth
- Frank Illingworth to Fred Illingworth
- Fred Illingworth to George Illingworth
- George Illingworth to Hannah Eliza Illingworth
- Harold Illingworth to Heaton Illingworth
- Hedley Illingworth to Hubert George Illingworth
- Helena Illingworth to James Illingworth
- James A Illingworth to Joe Illingworth
- Joe Sykes Illingworth to John Illingworth
- John Illingworth to John Ernest Illingworth
- John F Illingworth to Jonas Illingworth
- Jonas Illingworth to Joseph Illingworth
- Joseph Illingworth to Leonard Illingworth
- Lightfoot Illingworth to Mary Illingworth
- Mary Illingworth to Percy Illingworth