- Wilson Conway to Matthew Conwell
- Maureen Conwell to Carole Conyers
- Carolyn Conyers to Leah Conyers
- Lee Conyers to Carmen Conzalez
- Cesar Conzalez to Betty Coogan
- Beverly Coogan to Abe Cook
- Abel Cook to Ardith Cook
- Aretha Cook to Brenna Cook
- Brennan Cook to Chantell Cook
- Chantelle Cook to Cristina Cook
- Cristine Cook to Desirae Cook
- Desiree Cook to Elmore Cook
- Elna Cook to Geary Cook
- Gena Cook to Imogene Cook
- Ina Cook to Jerold Cook
- Jerolyn Cook to Katheryn Cook
- Katheryne Cook to Lanie Cook
- Lanier Cook to Lorine Cook
- Loring Cook to Marvell Cook
- Marvin Cook to Nedra Cook
- Neil Cook to Rae Cook
- Raeann Cook to Saundra Cook
- Savanah Cook to Susann Cook
- Susanna Cook to Tracey Cook
- Traci Cook to Young Cook
- Yvette Cook to Cecelia Cooke
- Cecil Cooke to Faye Cooke
- Felicia Cooke to Katherine Cooke
- Kathie Cooke to Naomi Cooke
- Natalie Cooke to Teri Cooke
- Terra Cooke to Billy Cooks
- Bobbie Cooks to Latonya Cooks
- Latoya Cooks to Anita Cooksey
- Ann Cooksey to Jimmie Cooksey
- Jimmy Cooksey to Tina Cooksey
- Todd Cooksey to Mary Cookson
- Matt Cookson to Duane Cool
- Dustin Cool to Steven Cool
- Susan Cool to William Cooler
- Aaron Cooley to Cleveland Cooley
- Cliff Cooley to Geoffrey Cooley
- George Cooley to Kevin Cooley
- Keyon Cooley to Nathan Cooley
- Nathaniel Cooley to Tammie Cooley
- Tammy Cooley to Jennifer Coolidge
- Jeremy Coolidge to Laura Coombe
- Margaret Coombe to Chad Coombs
- Charlene Coombs to Ken Coombs
- Kenneth Coombs to Trena Coombs
- Trevor Coombs to Lucille Coomer
- Margaret Coomer to John Coomes
- Jonathan Coomes to Carolyn Coon
- Carrie Coon to Janet Coon
- Janette Coon to Nelson Coon
- Nicholas Coon to Donald Coonan
- Edmund Coonan to Mary Cooner
- Matthew Cooner to Gerald Cooney
- Geraldine Cooney to Paula Cooney
- Pauline Cooney to David Coonrod
- Dean Coonrod to Danny Coons
- Darlene Coons to Mary Coons
- Matt Coons to Robert Coontz
- Ronald Coontz to Aj Cooper
- Aja Cooper to Arnita Cooper
- Arnold Cooper to Brittani Cooper
- Brittany Cooper to Charmaine Cooper
- Charon Cooper to Cyril Cooper
- Cyrus Cooper to Derenda Cooper
- Deric Cooper to Elli Cooper
- Ellie Cooper to Garry Cooper
- Garth Cooper to Illa Cooper
- Ilona Cooper to Jeramie Cooper
- Jeramy Cooper to Kathe Cooper
- Katherin Cooper to Lamarcus Cooper
- Lamarr Cooper to Lionel Cooper
- Lionell Cooper to Mariana Cooper
- Mariann Cooper to Miracle Cooper
- Miranda Cooper to Oswald Cooper
- Otha Cooper to Rhona Cooper
- Rhonda Cooper to Shakara Cooper
- Shakera Cooper to Stephaine Cooper
- Stephan Cooper to Tianna Cooper
- Tiara Cooper to Wallace Cooper
- Wally Cooper to Irwin Cooperman
- Jack Cooperman to John Coopie
- Aaron Coopman to Ann Coots
- Anna Coots to Randall Coots
- Randy Coots to John Cop
- Joseph Cop to David Copass
- James Copass to Dennis Cope
- Denny Cope to Kathy Cope
- Katie Cope to Reba Cope
- Rebecca Cope to Albert Copeland
- Alberta Copeland to Carson Copeland
- Carter Copeland to Dirk Copeland
- Dixie Copeland to Hayley Copeland
- Hazel Copeland to Kelsey Copeland
- Kelton Copeland to Mark Copeland
- Markita Copeland to Rex Copeland
- Rhea Copeland to Tiffaney Copeland
- Tiffany Copeland to Kevin Copeman
- Kimberly Copeman to Gloria Copenhaver
- Grace Copenhaver to Alice Copes
- Alton Copes to Sharon Copher
- Shawn Copher to Austin Copley
- Autumn Copley to June Copley
- Justin Copley to Bernard Coplin
- Bernice Coplin to Craig Copp
- Crystal Copp to Shaun Copp
- Shawn Copp to Leslie Coppage
- Lillian Coppage to Rodney Coppedge
- Ronald Coppedge to Kettle Copper
- Kevin Copper to Kenneth Coppes
- Larry Coppes to Kathleen Coppinger
- Kathy Coppinger to Mike Copple
- Mitchell Copple to Marjorie Coppock
- Mark Coppock to Elena Coppola
- Elisa Coppola to Robert Coppola
- Roberto Coppola to Ray Copsey
- Raymond Copsey to Karen Cora
- Kathleen Cora to Rosa Corado
- Ruben Corado to Luther Coram
- Margaret Coram to Andrew Corbeil
- Anne Corbeil to Margaret Corbert
- Robert Corbert to Cindy Corbett
- Claire Corbett to Hugh Corbett
- Hunter Corbett to Lorna Corbett
- Lorraine Corbett to Sadie Corbett
- Sally Corbett to Allan Corbin
- Allen Corbin to Darren Corbin
- Darrin Corbin to Janelle Corbin
- Janet Corbin to Malinda Corbin
- Mallory Corbin to Scott Corbin
- Sean Corbin to Elizabeth Corbit
- Evelyn Corbit to Irene Corbitt
- Isaac Corbitt to Vernon Corbitt
- Vicki Corbitt to Amy Corby
- Andrew Corby to Isaac Corchado
- Jacob Corchado to Billy Corcoran
- Blair Corcoran to Jamie Corcoran
- Jan Corcoran to Patric Corcoran
- Patricia Corcoran to Laura Cord
- Lee Cord to Patricia Cordas
- Thomas Cordas to Lillian Cordeiro
- Linda Cordeiro to Connie Cordell
- Constance Cordell to Leona Cordell
- Leonard Cordell to Willie Cordell
- Wilma Cordell to Hazel Corder
- Heather Corder to Shelby Corder
- Shelly Corder to Benigno Cordero
- Benita Cordero to Emmanuel Cordero
- Encarnacion Cordero to Jerry Cordero
- Jesse Cordero to Megan Cordero
- Mel Cordero to Salvador Cordero
- Sam Cordero to Brenda Cordes
- Brent Cordes to Lloyd Cordes
- Lois Cordes to Thomas Cordie
- Michael Cordiello to Clyde Cordle
- Colleen Cordle to Kelly Cordner
- Kenneth Cordner to Marcela Cordoba
- Marco Cordoba to Juan Cordon
- Juana Cordon to Alberto Cordova
- Albino Cordova to Cheryl Cordova
- Chris Cordova to Eunice Cordova
- Eusebio Cordova to Jennie Cordova
- Jennifer Cordova to Mara Cordova
- Marc Cordova to Ralph Cordova
- Ramirez Cordova to Toni Cordova
- Tony Cordova to Joseph Cordray
- Joshua Cordray to David Cordts
- Donald Cordts to Gregory Core
- Harold Core to Elizabeth Corea
- Elmer Corea to Julio Coreas
- Karen Coreas to Sharon Corella
- Socorro Corella to Carrie Corey
- Carter Corey to Jared Corey
- Jarod Corey to Norma Corey
- Norman Corey to Kevin Corgan
- Kyle Corgan to Miriam Coria
- Moises Coria to Linda Corigliano
- Maria Corigliano to Frank Cork
- Gary Cork to Kevin Corker
- Kimberly Corker to Linda Corkill
- Marjorie Corkill to Christine Corl
- Christopher Corl to Virginia Corless
- Wayne Corless to Rodolfo Corlew
- Roger Corlew to Darrell Corley
- Darren Corley to Jessie Corley
- Jewel Corley to Naomi Corley
- Natalia Corley to Vicki Corley
- Vickie Corley to Norman Corliss
- Pamela Corliss to Ashley Corman
- Barbara Corman to Daniel Cormican
- David Cormican to Alexander Cormier
- Alexandra Cormier to Ed Cormier
- Eddie Cormier to Kristin Cormier
- Kristina Cormier to Ryan Cormier
- Sadie Cormier to Clayton Corn
- Clifford Corn to Megan Corn
- Melanie Corn to Howard Cornay
- David Cornblatt to Ciro Cornejo
- Clara Cornejo to Joanna Cornejo
- Joaquin Cornejo to Ruth Cornejo
- Sabrina Cornejo to Sandra Cornelio
- Santos Cornelio to Karen Cornelison
- Katherine Cornelison to Bernice Cornelius
- Bert Cornelius to Erica Cornelius
- Erik Cornelius to Kim Cornelius
- Kimberly Cornelius to Richard Cornelius
- Rick Cornelius to Allen Cornell
- Allison Cornell to Doreen Cornell
- Doris Cornell to June Cornell
- Justin Cornell to Philip Cornell
- Phillip Cornell to Kevin Cornellier
- Larry Cornellier to Zena Corner
- Robert Cornero to Dale Cornett