- Brian Krasinski to Ruth Krasner
- Sam Krasner to Ronald Krass
- Shirley Krass to John Kratochvila
- Daniel Kratochwill to James Kratz
- Jamie Kratz to Cheryl Kratzer
- Chris Kratzer to Zachary Kratzer
- Arthur Kratzert to David Kraus
- Dawn Kraus to Justin Kraus
- Justine Kraus to Roger Kraus
- Roland Kraus to Bernice Krause
- Bernie Krause to Emily Krause
- Emma Krause to June Krause
- Jurgen Krause to Miranda Krause
- Miriam Krause to Tina Krause
- Toby Krause to Ann Krauss
- Anna Krauss to Kristina Krauss
- Kurt Krauss to Linda Krausz
- Mark Krausz to Peter Krautkramer
- Richard Krautkramer to Samuel Kravetz
- Sandra Kravetz to Rebecca Kravitz
- Richard Kravitz to Janice Krawczyk
- Jaroslaw Krawczyk to Edward Krawiec
- Eleanor Krawiec to Lori Kraynak
- Margaret Kraynak to Kenneth Krebbs
- Larry Krebbs to Faye Krebs
- Festus Krebs to Mike Krebs
- Mildred Krebs to Ryan Krebsbach
- Samantha Krebsbach to David Kreft
- Dawn Kreft to Jeffrey Kreger
- Jennifer Kreger to Joe Krehbiel
- John Krehbiel to Denise Kreider
- Dennis Kreider to Stephanie Kreider
- Stephen Kreider to Mark Kreiger
- Mary Kreiger to Roger Krein
- Ronald Krein to Jane Kreis
- Janet Kreis to Henry Kreiser
- James Kreiser to David Kreitler
- Frank Kreitler to Patricia Krejca
- Dale Krejcar to Martin Krekow
- Adam Krell to Michael Kremen
- Richard Kremen to Justin Kremer
- Kaitlin Kremer to Mary Kremers
- Matt Kremers to Gary Krenek
- George Krenek to Kelly Krentz
- Kenneth Krentz to Richard Krenzer
- Robert Krenzer to Evelyn Kreps
- Floretta Kreps to Kathleen Kresge
- Kathryn Kresge to Darin Kress
- Darlene Kress to Nathan Kress
- Nicholas Kress to Ruth Kressin
- Scott Kressin to Thomas Kretschmar
- William Kretschmar to John Kretzer
- Joseph Kretzer to Anthony Kreuter
- Barbara Kreuter to Larry Kreutzer
- Laura Kreutzer to Timothy Krewson
- Walter Krewson to Allan Krick
- Amanda Krick to Nancy Krickl
- Ronald Krickler to Margaret Kriebel
- Marilyn Kriebel to Kathleen Krieg
- Kathryn Krieg to Martin Kriegel
- Mary Kriegel to Frances Krieger
- Francine Krieger to Michele Krieger
- Michelle Krieger to David Krienke
- Douglas Krienke to Shannon Kries
- William Kries to Joshua Kriger
- Karen Kriger to Lori Krill
- Margaret Krill to Nicholas Kriner
- Norman Kriner to Margaret Krings
- Mark Krings to Roger Krisatis
- Brian Krisch to Gopi Krishna
- Hari Krishna to Hari Krishnan
- Hariharan Krishnan to John Kriska
- Joseph Kriska to Louis Krist
- Margaret Krist to Steven Kristiansen
- Susan Kristiansen to Andrew Kristovich
- George Kristovich to Kerry Krivanek
- Louis Krivanek to Stephen Krizan
- Steven Krizan to William Krock
- Robert Krocka to Justin Kroeger
- Karen Kroeger to Peter Kroeker
- Rebecca Kroeker to Michael Kroeplin
- Randy Kroeplin to Carla Kroger
- Carol Kroger to Shirley Krogh
- Stephen Krogh to Megan Kroh
- Michael Kroh to Janet Krohn
- Janice Krohn to Violet Krohn
- Virgil Krohn to Jadwiga Krol
- James Krol to Karen Krolczyk
- Kenneth Krolczyk to Charles Kroll
- Charlotte Kroll to Keith Kroll
- Kelly Kroll to Trudy Kroll
- Tyler Kroll to Betty Kromer
- Beverly Kromer to Brian Kron
- Brittany Kron to George Kroncke
- Jennifer Kroncke to Daniel Kronebusch
- Eric Kronebusch to Walter Kroner
- Wendy Kroner to John Krook
- Kenneth Krook to Matthew Kropf
- Melissa Kropf to Keith Kropp
- Kelly Kropp to Mark Kross
- Mary Kross to Linda Kroupa
- Margaret Kroupa to Rebecca Krouse
- Richard Krouse to John Krownapple
- Patricia Kroy to Christine Kruczek
- Deborah Kruczek to Carla Krueger
- Carly Krueger to Forrest Krueger
- Frances Krueger to Katherine Krueger
- Kathleen Krueger to Miriam Krueger
- Misty Krueger to Taylor Krueger
- Ted Krueger to Christine Krug
- Christopher Krug to Lyle Krug
- Lynn Krug to Barry Kruger
- Becky Kruger to Hanna Kruger
- Hannah Kruger to Melissa Kruger
- Melody Kruger to Jerry Krugh
- John Krugh to Roger Kruk
- Roman Kruk to Clarence Krull
- Connie Krull to Stacey Krull
- Stephanie Krull to Benjamin Krumholz
- Daniel Krumholz to Scott Krumm
- Sharon Krumm to Jim Krumwiede
- John Krumwiede to Marian Krupa
- Marianne Krupa to Anna Krupka
- Anthony Krupka to Julie Krupp
- Julius Krupp to Richard Krus
- Robert Krus to Danielle Kruse
- Danny Kruse to Johnny Kruse
- Jolene Kruse to Nichole Kruse
- Nick Kruse to Connie Krusemark
- Dale Krusemark to Marian Kruszynski
- Mark Kruszynski to Joseph Kruzich
- Judith Kruzich to Peter Krysa
- Robert Krysa to Richard Krzemien
- Robert Krzemien to William Krzywicki
- Barbara Krzywonos to Hee Ku
- Helen Ku to Chih Kuan
- Ching Kuan to Abraham Kuany
- Edward Kub to Frank Kubala
- Gary Kubala to Mark Kubat
- Mary Kubat to Carol Kuberski
- David Kuberski to Kathleen Kubiak
- Kathryn Kubiak to Edward Kubicek
- Elizabeth Kubicek to Bruce Kubik
- Carl Kubik to Robert Kubilus
- Vincent Kubilus to Jack Kubiszyn
- Barbara Kubit to Hideki Kubota
- Hideo Kubota to Barbara Kucera
- Barry Kucera to Rita Kucera
- Robert Kucera to Margaret Kuchar
- Marion Kuchar to Piotr Kucharski
- Raymond Kucharski to Edward Kuchinsky
- George Kuchinsky to Timothy Kuchta
- Tina Kuchta to Lloyd Kuck
- Lois Kuck to Eric Kuczynski
- Francis Kuczynski to Vincent Kudirka
- James Kudis to Lisa Kuduk
- Mary Kuduk to Julie Kuebler
- Karen Kuebler to Amber Kuehl
- Amy Kuehl to Lucille Kuehl
- Lynn Kuehl to Carolyn Kuehn
- Carrie Kuehn to Lloyd Kuehn
- Lois Kuehn to Jason Kuehne
- Jeffrey Kuehne to James Kuehnle
- Jennifer Kuehnle to Keith Kuenzel
- Kenneth Kuenzel to Jonathan Kuester
- Joseph Kuester to Ronald Kuffel
- Sarah Kuffel to Craig Kugler
- Crystal Kugler to Teresa Kugler
- Terri Kugler to Barry Kuhl
- Beatrice Kuhl to Martin Kuhl
- Marvin Kuhl to Carrie Kuhlman
- Casey Kuhlman to Michelle Kuhlman
- Mike Kuhlman to John Kuhlmann
- Jonathan Kuhlmann to Betty Kuhn
- Beverly Kuhn to Erika Kuhn
- Erin Kuhn to Karrie Kuhn
- Kate Kuhn to Nathan Kuhn
- Nathaniel Kuhn to Troy Kuhn
- Trudy Kuhn to Charles Kuhnle
- Christopher Kuhnle to Jeffrey Kuhns
- Jennifer Kuhns to William Kuhns
- Wilma Kuhns to Gloria Kuilan
- Hector Kuilan to Ashley Kuipers
- Barbara Kuipers to Dean Kujawa
- Deanna Kujawa to Joan Kujawski
- Joann Kujawski to Elsie Kukla
- Eric Kukla to Lawrence Kukowski
- Linda Kukowski to Helen Kula
- Henry Kula to David Kulakowski
- Dennis Kulakowski to Joseph Kulbickas
- John Kulbis to Stefan Kulesza
- Stephanie Kulesza to Michelle Kulick
- Mike Kulick to Irene Kulik
- James Kulik to Anne Kulinski
- Barbara Kulinski to Aniket Kulkarni
- Anil Kulkarni to Sucheta Kulkarni
- Suchitra Kulkarni to Victoria Kull
- Virginia Kull to Karen Kulow
- Karl Kulow to Kathryn Kulp
- Kathy Kulp to Jill Kulper
- John Kulper to Amitesh Kumar
- Amod Kumar to Funil Kumar
- Gagan Kumar to Mohan Kumar
- Mohinder Kumar to Regina Kumar
- Reginald Kumar to Steve Kumar
- Steven Kumar to Sangeeta Kumari
- Sangita Kumari to Benjamin Kummer
- Bernard Kummer to Zachary Kummer
- Alan Kummerer to Steven Kumpf
- Susan Kumpf to Paul Kunce
- Rebecca Kunce to Keith Kundert
- Kenneth Kundert to Deborah Kunesh
- Edward Kunesh to Sophia Kung
- Stanley Kung to Andy Kunkel
- Angela Kunkel to Jeremy Kunkel
- Jerome Kunkel to Scott Kunkel