Constancius Koelle to Maria Catherina Petronella Koert - 1911 Census household returns
- Constancius Koelle
- Rosina Koelle
- Ida Koellner
- Henry Koelman
- Louis Koempel
- Joseph Koen
- Margaret Koen
- William Koeneke
- Antony Koenen
- Frederick Koenen
- Phyllis Koener
- August Koenig
- Carl Koenig
- Carl Koenig
- Frederick Koenig
- Julius Koenig
- Louisa Koenig
- Otto Albert Koenig
- Paul Koenig
- Samuel Koenig
- William Koenig
- William Koenig
- Morris Koenigsberg
- Myer Koenigsberg
- Morris Koenigsblatt
- Max Koenigsdorf
- Gustav Emil Koenigsfeld
- Hermann Koenings
- Elizabeth Koenyon
- Karl Koepf
- William Koepke
- Charlotte Koepp
- Emil Koeppel
- Adolf Koeppen
- John Henry Koeppern
- John Koeppl
- Eugen Koeppner
- Adam Koerber
- Catherine Koerber
- Charles Koerber
- Dorothy P Koerber
- John Jacob Christian Koerber
- Louise Koerber
- Thomas William Koerber
- Arthur H Koering
- Albert Koerner
- Albert Koerner
- Edward Frank Koerner
- Eliza Koerner
- Ernest Robert Koerner
- Frederick Koerner
- Fredericka Koerner
- Gotthold Edward Koerner
- Hermann Koernich
- Maria Catherina Petronella Koert