John Knapp to Mary Knapp - 1881 Census household returns
- John Knapp
- John Knapp
- John Knapp
- John Knapp
- John Knapp
- John Knapp
- John Knapp
- John Knapp
- John Knapp
- John Knapp
- John Knapp
- John Knapp
- John Knapp
- John C Knapp
- John F Knapp
- John G F H Knapp
- John H Knapp
- John H Knapp
- John J Knapp
- John S Knapp
- John T Knapp
- John W Knapp
- John W Knapp
- Jonathan W Knapp
- Joseph Knapp
- Joseph Knapp
- Joseph Knapp
- Joseph Knapp
- Joseph Knapp
- Joseph Knapp
- Joseph Knapp
- Joseph Knapp
- Joseph Knapp
- Joseph G Knapp
- Joseph Player Knapp
- Joshua Knapp
- Josiah Knapp
- Kathrina Knapp
- Lawrence Knapp
- Leonard Randolph Knapp
- Louis Knapp
- Louisa E Knapp
- Lucy Knapp
- Maria Knapp
- Maria Knapp
- Maria Knapp
- Martha Knapp
- Martha Knapp
- Martin A Knapp
- Mary Knapp