Richard Sidney to Charles Simmonds - 1881 Census household returns
- Richard Sidney to Dinah Sidwell
- Edmund C Sidwell to Joseph Sidwell
- Joseph Sidwell to James Sie
- Thomas Sie to William Sier
- William Sier to John Siezeland
- Albert Siezer to George Siggers
- George Siggers to James Siggs
- John Siggs to Caroline E Sigmur
- James Sign to John Sigsworth
- John Sigsworth to Adam A Silberberg
- Louis Silberberg to Neal Silby
- Paul Silby to George Silcock
- George Silcock to Joseph Silcock
- Joseph Silcock to William Silcock
- William Silcock to Henry Silcox
- Henry Silcox to Silvester Silford
- William Silgram to Florence C Silk
- Francis Silk to John Silk
- John A Silk to Thomas Silk
- Thomas Silk to William H Silke
- John G Silkenstadt to John Sill
- John Sill to Jane Sillars
- Jane Sillars to James Sillence
- James Sillence to George Sillett
- George Sillett to Henry Sillick
- Isaiah Sillick to Robert Sillis
- Robert Sillis to Mary Sillitoe
- Mary Sillitoe to Charles Sills
- Charles Sills to John Sills
- John Sills to William Sills
- William Sills to Sildon R Silmes
- George Silmon to Jonathan Silson
- Joseph Silson to Anna M Silver
- Anthony Silver to George Silver
- George Silver to John Silver
- John Silver to Samuel Silver
- Samuel Silver to Elizabeth Silverbeck
- Abraham Silverberg to John Silvers
- John S Silvers to William R Silversides
- Adam Silversmith to John Silverthorne
- Maxwell H Silverthorne to Job Silverwood
- John Silverwood to William Silverwood
- William Silverwood to Edwin Silvester
- Edwin Silvester to Henry Silvester
- Henry Silvester to John Silvester
- John Silvester to Martha Silvester
- Martha C Silvester to Thomas Silvester
- Thomas Silvester to Edward Silveston
- Francis Silveston to William Silvy
- Ann Joseph Silway to Andrew Sim
- Andrew Sim to Elizabeth H Sim
- Ellen Sim to Hugh Sim
- Hugh Sim to James Sim
- James Sim to John Sim
- John Sim to Margaret Sim
- Margaret Sim to Thomas Sim
- Thomas Sim to William Sim
- William Sim to Alexander Simcock
- Ann Simcock to John Simcock
- John Simcock to William Simcock
- William Simcock to Enoch Simcox
- Fanny Simcox to Thomas Simcox
- Thomas Simcox to Daniel Sime
- Daniel Sime to Jane Sime
- Jane Sime to Robert Sime
- Robert Sime to John Carne Simeons
- Margaret A Simeons to Thomas Simeson
- William Simeson to Benjamin Simister
- Betty Simister to John Simister
- John J Simister to Ann Simkin
- Arthur Simkin to Oliver S Simkin
- Richard Simkin to Charles W Simkins
- Christopher Simkins to John Simkins
- John Simkins to Frances M Simkiss
- Henry Simkiss to George Simm
- Gilbert S Simm to John Simm
- John Simm to Thomas Simm
- Thomas Simm to Charles Simmers
- Charles Simmers to Mary A Simmins
- Philip Simmins to William Simmond
- William Simmond to Anny Simmonds
- Arnold Nesbett Simmonds to Charles Simmonds