- Scott Simpson to Teena Simpson
- Tennie Simpson to Wilda Simpson
- Wiley Simpson to Ariel Sims
- Arielle Sims to Casey Sims
- Cassandra Sims to Dave Sims
- David Sims to Elmo Sims
- Elnora Sims to Henri Sims
- Henrietta Sims to Johney Sims
- Johnie Sims to Latrina Sims
- Latrise Sims to Marquisha Sims
- Marquita Sims to Otis Sims
- Ottis Sims to Samuel Sims
- Sandi Sims to Tawanna Sims
- Taylor Sims to Winifred Sims
- Winnie Sims to Li Sin
- Lily Sin to Diane Sinatra
- Ellen Sinatra to Alison Sinclair
- Allan Sinclair to Dee Sinclair
- Delbert Sinclair to Jenna Sinclair
- Jenni Sinclair to Marva Sinclair
- Marvin Sinclair to Sonny Sinclair
- Sonya Sinclair to Jason Sindelar
- Jeff Sindelar to Betty Sine
- Brandon Sine to Sam Sineni
- Thomas Sineni to Norma Sines
- Norman Sines to Paul Sing
- Peter Sing to Bridget Singer
- Brittany Singer to George Singer
- Georgia Singer to Lester Singer
- Lewis Singer to Ronnie Singer
- Rory Singer to Adesh Singh
- Adit Singh to Arshdeep Singh
- Arshi Singh to Billy Singh
- Bimal Singh to Deep Singh
- Deepa Singh to Geeta Singh
- Geetali Singh to Harjot Singh
- Harkamal Singh to Janice Singh
- Japinder Singh to Kanwaljeet Singh
- Kanwaljit Singh to Leonard Singh
- Leslie Singh to Mitra Singh
- Mohabeer Singh to Pallavi Singh
- Palminder Singh to Rachel Singh
- Rachhpal Singh to Ritesh Singh
- Ritika Singh to Satender Singh
- Satendra Singh to Sonika Singh
- Sonita Singh to Tarlochan Singh
- Tarlochen Singh to Sandeep Singhai
- Abhishek Singhal to Adrian Singletary
- Adrienne Singletary to Eliz Singletary
- Elizabeth Singletary to Leon Singletary
- Leonard Singletary to Sol Singletary
- Solomon Singletary to Ana Singleton
- Anderson Singleton to Christi Singleton
- Christian Singleton to Eddie Singleton
- Edgar Singleton to Inez Singleton
- Inger Singleton to Kirby Singleton
- Kirk Singleton to Mary Singleton
- Maryann Singleton to Rene Singleton
- Renee Singleton to Tawana Singleton
- Tawanda Singleton to Diana Singley
- Diane Singley to Anjana Sinha
- Anjani Sinha to Vikash Sinha
- Vineet Sinha to Brittany Sink
- Bruce Sink to Peggy Sink
- Peter Sink to David Sinkler
- Debra Sinkler to Shirley Sinks
- Stephanie Sinks to Diane Sinner
- Donald Sinner to Charles Sinnott
- Chris Sinnott to Anthony Sinopoli
- Antonio Sinopoli to Alan Sinton
- Barbara Sinton to Edgar Sipaque
- Jose Sipaque to Kay Sipe
- Keith Sipe to Bernard Sipes
- Bernice Sipes to Larry Sipes
- Laura Sipes to George Sipka
- James Sipka to Susan Sipos
- Thomas Sipos to Sara Sippel
- Sarah Sippel to Carol Sippola
- David Sippola to Richard Sirabella
- Anthony Siraco to Nicholas Siravo
- Nicole Siravo to Thomas Sires
- Walter Sires to Michael Sirignano
- Neil Sirignano to Robert Sirmans
- Rodney Sirmans to Geraldine Sirois
- Gerard Sirois to Matthew Siron
- Nancy Siron to Kenneth Sischo
- Lyle Sischo to Jane Sisco
- Janet Sisco to Stacey Sisco
- Stanley Sisco to Anthony Sisk
- April Sisk to Harvey Sisk
- Hazel Sisk to Pearl Sisk
- Peggy Sisk to Barbara Siskind
- Barry Siskind to Nancy Sisler
- Nathan Sisler to Gregory Sisneros
- Guadalupe Sisneros to William Sisney
- Carlos Siso to Teresita Sison
- Thelma Sison to Carlton Sisson
- Carol Sisson to Joseph Sisson
- Josephine Sisson to Shirley Sisson
- Spencer Sisson to Dennis Sisto
- Dominick Sisto to Leroy Sistrunk
- Leslie Sistrunk to Nick Sitaras
- Edward Sitarek to Jackie Sites
- Jacob Sites to Edward Sitko
- Elizabeth Sitko to Jack Sitter
- James Sitter to Adam Sitton
- Alan Sitton to Terry Sitton
- Thelma Sitton to Daniel Sitze
- Jacob Sitze to Ellen Siu
- Emily Siu to Michelle Siuda
- Richard Siuda to Patricia Siverling
- Robert Siverling to Bobby Sivley
- Brenda Sivley to Jason Siwula
- Jennifer Siwula to Robert Six
- Roberta Six to Alton Sizemore
- Alva Sizemore to Doris Sizemore
- Dorothy Sizemore to Kasey Sizemore
- Katelyn Sizemore to Randal Sizemore
- Randall Sizemore to George Sizer
- Gregory Sizer to Edward Sjogren
- Elizabeth Sjogren to John Skaar
- Joseph Skaar to Brandy Skaggs
- Braun Skaggs to Glenn Skaggs
- Gloria Skaggs to Marlene Skaggs
- Marlisha Skaggs to Tyler Skaggs
- Ulysses Skaggs to Mary Skala
- Matt Skala to Walter Skalski
- Amy Skalsky to James Skarren
- Mary Skarren to Charles Skeel
- David Skeel to Elmer Skeen
- Emily Skeen to Theresa Skeen
- Thomas Skeen to Regina Skeens
- Richard Skeens to James Skehan
- John Skehan to Amy Skelly
- Andrea Skelly to Russell Skelly
- Ruth Skelly to Deanna Skelton
- Debbie Skelton to Kelli Skelton
- Kelly Skelton to Sandy Skelton
- Sara Skelton to George Skentzos
- Gordon Skeoch to Ellen Skiba
- Emily Skiba to Gary Skibinski
- George Skibinski to David Skidmore
- Dawn Skidmore to Lillian Skidmore
- Linda Skidmore to Ward Skidmore
- Warren Skidmore to Emily Skiles
- Eric Skiles to Timothy Skiles
- Tina Skiles to Justin Skillings
- Karen Skillings to Tom Skillman
- Tracy Skillman to Bonnie Skinner
- Boyce Skinner to Derry Skinner
- Deshawn Skinner to Helen Skinner
- Helena Skinner to Kody Skinner
- Korey Skinner to Mickey Skinner
- Mike Skinner to Sabrina Skinner
- Sallie Skinner to Wendell Skinner
- Wendy Skinner to Edith Skipper
- Edna Skipper to Mike Skipper
- Mildred Skipper to Anthony Skipworth
- Ashley Skipworth to Betty Skiver
- Brian Skiver to Jeanne Sklar
- Jeff Sklar to Richard Skobel
- Maria Skobeleva to Katherine Skogen
- Kenneth Skogen to Matthew Skok
- Michael Skok to Howard Skolnik
- Jack Skolnik to Mark Skop
- Mary Skop to Andrzej Skotnicki
- Anne Skotnicki to Anna Skowron
- Anthony Skowron to Marilyn Skowronski
- Mark Skowronski to James Skrocki
- Jeffrey Skrocki to Karen Skufca
- Louis Skufca to Michelle Skutt
- Richard Skutt to John Skylondz
- Brenda Skylstad to John Slaby
- Joseph Slaby to Dustin Slack
- Dylan Slack to Lloyd Slack
- Lois Slack to Travis Slack
- Trevor Slack to Danielle Slade
- Danny Slade to Kay Slade
- Kayla Slade to Skyler Slade
- Sondra Slade to Edward Sladky
- Eric Sladky to Joan Slaght
- John Slaght to Goldie Slagle
- Gordon Slagle to Rosemary Slagle
- Roy Slagle to Kathleen Slama
- Kelly Slama to Marcus Slaney
- Mary Slaney to Brian Slaski
- David Slaski to John Slate
- Johnny Slate to Donna Slaten
- Dorothy Slaten to Carl Slater
- Carla Slater to Fannie Slater
- Fay Slater to Kenny Slater
- Kent Slater to Odessa Slater
- Olga Slater to Tommy Slater
- Toni Slater to Dale Slaton
- Daniel Slaton to Robert Slaton
- Robin Slaton to Dan Slattery
- Dana Slattery to Phyllis Slattery
- Quinn Slattery to Charles Slaugh
- Chris Slaugh to Christophe Slaughter
- Christopher Slaughter to Gertrude Slaughter
- Gilbert Slaughter to Latanya Slaughter
- Latasha Slaughter to Perry Slaughter
- Pete Slaughter to Vera Slaughter
- Verna Slaughter to Herbert Slaven
- Howard Slaven to Margaret Slavens
- Mark Slavens to Stephanie Slavik
- Stephen Slavik to Mitchell Slavin
- Molly Slavin to Bill Slawson
- Brandon Slawson to Curtis Slay
- Cynthia Slay to Tony Slay
- Tonya Slay to Charles Slaymaker
- Chris Slaymaker to Dennis Slayton
- Derek Slayton to Pamela Slayton
- Pat Slayton to Deborah Slechta
- Dorothy Slechta to Earnest Sledge
- Eddie Sledge to Morris Sledge