William Underwood to Elizabeth Unsworth - 1881 Census household returns
- William Underwood to William Underwood
- William Underwood to William Underwood
- William Underwood to William Underwood
- William Underwood to William Underwood
- William Underwood to William Underwood
- William Underwood to William Underwood
- William Underwood to William C Underwood
- William D Underwood to Robert P Undlehay
- Charles Undrell to Joseph Undy
- Joseph Undy to Job Unett
- Joseph Unett to Carl Ungereu
- Henry Ungers to John Ungoed
- Margaret Ungoed to Caleb Unicume
- Charles Unicume to Matthew Unioni
- Aaron Unions to Charles Unitt
- Charles Unitt to Robert Unitt
- Samuel Unitt to Mary Unmonier ?
- Charles Hy Unna to Edward Unstead
- Edward Unstead to Henry Unsted
- Henry W Unsted to Alfred Unsworth
- Alfred Unsworth to Bertha Unsworth
- Betsy Unsworth to Edward Unsworth
- Edward Unsworth to Elizabeth Unsworth