Abraham Koningswinter to George W Koplik - 1881 Census household returns
- Abraham Koningswinter
- Emmanuel Koningswinter
- Henry Mcf Konis
- Anton F Konlosey
- I Konniff
- Ann Konnington
- William James Junr Konnly
- John Konoaks
- Charles Konow
- Jacob Konrath
- Nickolaus Konrath
- John Konroy
- William W Kons
- Naden Konstmann
- Peter Konter
- Patrick Konvan Or Koswan
- John W Koogmans
- Jacob Kooi
- Hyman Kool
- David Koolman
- John Koolman
- Susana Koolman
- William Koolman
- Thomas Koom
- Rachel M Koomchick
- Henry Koon
- Catherine Kooney
- John Kooney
- Augusta Koop
- Henry Koop
- Margaret G Koop
- Lazarus Kooperman
- Abraham Koopman
- Morris Koopman
- George Koos
- Leander Koos
- Solomon Kootchinsky
- William Koote
- Bernhard Koper
- Godfrey Koper
- Rebecca Kopera
- Emanuel Kopetzley
- Robert Kopher
- Gustave Kopieske
- Fredrick Kopieski
- Hannah Kopke
- Herman Kopke
- Thomas Kopley
- Louis Jas Koplick
- George W Koplik