? K A M Mac Kenzie to Edmund Kay - 1881 Census household returns
- ? K A M Mac Kenzie to Henry Kace
- Mary Kace to Mary Kafer
- Owen Kaffe to John Kahoe
- Marks Kahoe to Judith Kaighin
- Margaret Kaighin to John Kaile
- Kezia Kaile to Edwerd Kain
- Elizabeth Kain to John Kain
- John Kain to William Kain
- William Kain to John Kainvig
- Peter Kaiper to John Kalaher
- Peter Kalaher to Joseph Kalin
- Montz Kalisch to John B Kalmthout D'aubrey
- Robert Kalner to Gabriel Kamensky
- William Kamenz to Catharine Kanaugh
- Patrick Kanay to Catherine Kane
- Catherine Kane to Francis Kane
- Francis Kane to James Kane
- James Kane to John Kane
- John Kane to John Kane
- John Kane to Mary Kane
- Mary Kane to Patrick Kane
- Patrick Kane to Thomas Kane
- Thomas Kane to John Kaneen
- John Kaneen to Charles Kannegisier
- John Kanngeisse to Peter Kappes
- Levy Kapples to Edwin Karkeet
- Elizabeth Karkeet to James Karn
- James Karn to Ferdinand Karok
- Ferdinand Karoli to William Karran
- William Karran to Elizabeth Karzeneski
- Lisetta Kasamdli to James Kaster
- Lazarus Kasterberg to Robert Katerly
- Robert Katerly to Casper Kathoff
- James Kathrend to William Katterns
- William Katterns to Wilhelm Kaufman
- Adolph Kaufmann to Bartholomew Kavanagh
- Bridget Kavanagh to James Kavanagh
- James Kavanagh to Joseph D Kavanagh
- Julia Kavanagh to Patrick Kavanagh
- Patrick Kavanagh to Luke Kavanah
- Matthew Kavanah to George Kavnau
- William Kavner to Agnes Kay
- Agnes Kay to Alfred Kay
- Alfred Kay to Andrew Kay
- Andrew Kay to Ann Kay
- Ann Kay to Arthur Kay
- Arthur Kay to Caleb W C Kay
- Caroline Kay to Charles Donald Kay
- Charles H Kay to David Kay
- David Kay to Edmund Kay