s. Son.
s. &. h. Son and heir.
Secondary Evidence Evidence that is inferior to primary or first hand evidence; it becomes acceptable when the primary or best evidence is lost or inaccessible.
serv. (Census) Servant.
Sexton Church worker who is responsible for burying the dead and keeping a burial register.
SH Somerset House. (See below)
sibling A brother or sister.
Sic (Latin) thus; copied exactly as the original reads It is often inserted to suggest that a mistake has been made in an original document.
Somerset House Formerly the London office and archives of the Registrar General.
s/o Son of.
SoG Society of Genealogists.
son-in-law A daughter's husband.
Soundex An index in which all similarly pronounced names are grouped together, as in Robson, Robeson, and Robinson.
source Document, record, publication, manuscript, etc., used to prove a fact.
spouse Husband or wife.
srnm. Surname (see below).
St. Saint; street.
StCH St. Catherine's House.
step-brother / step-sister Child of a person's step-father or step-mother.
step-child Child of a person's husband or wife from a previous marriage.
step-father Husband of a person's mother by a later marriage.
step-mother Wife of a person's father by a later marriage.
subpoena A written order to appear in court.
surg. Surgeon.
surnameFamily name; Usually the last name but in some cultures precedes the given name.