Smith Ulyatt to Frank Knight Underhay - 1911 Census household returns
- Smith Ulyatt to George Ulyett
- George Ulyett to Harriett Jane Umber
- Alfred Charles Umbers to Elizabeth Umfreville
- Herbert Umfreville to Charles Umney
- Charles Umney to Burt Umpelby
- Edward Harry Umpelby to Alice Gardner Umpleby
- Ann Umpleby to Eliza Umpleby
- Elizabeth Umpleby to George William Umpleby
- George William Umpleby to James Umpleby
- James Umpleby to John William Umpleby
- John William Umpleby to Philip Umpleby
- Rachel Umpleby to Thomas Henry Umpleby
- Tom Umpleby to Ellis Dearden Umplely
- William Walter Umplely to Joseph Uncle
- Joseph A Uncle to Henry John Uncles
- Hubert Uncles to Willie James Uncles
- Edwin Uncless to Charles Underdown
- Charles Underdown to Elizabeth Ogilvie Underdown
- Elizabeth Victoria Underdown to George Underdown
- George Underdown to James Underdown
- James Underdown to John Thomas Underdown
- Joshua Underdown to Thomas Underdown
- Thomas Underdown to Walter Underdown
- Walter Lewis Underdown to Gilbert Underell
- Henry Joseph Underell to Frank Knight Underhay