SALESBURY ( SALISBURY ), HENRY ( 1561 - 1637? ), grammarian
SALESBURY, WILLIAM ( 1520? - 1584? ), scholar and chief translator of the first Welsh New Testament .
SALISBURY, ENOCH ROBERT GIBBON ( 1819 - 1890 ), lawyer and bibliophile
SALISBURY, THOMAS ( 1567? - 1620 ), London publisher .
SALMON, DAVID ( 1852 - 1944 ), training college principal
SALTER DAVIES, ERNEST ( 1872 - 1955 ), educationalist
SALUSBURY, SALISBURY , SALESBURY family, of Lleweni and Bachygraig .
SALUSBURY, SALESBURY family, of Rug and Bachymbyd .
SALUSBURY,Sir CHARLES JOHN ( 1792 - 1868 ), cleric and antiquary
SALUSBURY, JOHN ( 1575 - 1625 ), or John Parry , Jesuit and scholar
SALUSBURY, THOMAS ( 1564 - 1586 ), conspirator
SALUSBURY,Sir THOMAS ( 1612 - 1643 ), poet and country gentleman
SAMSON ( c. 485 - 565 ), abbot and bishop in the Celtic Church
SAMUEL, CHRISTMAS ( 1674 - 1764 ), Independent minister
SAMUEL, DAVID ( Dewi o Geredigion 1856 - 1921 ), schoolmaster and writer
SAMUEL, EDWARD ( 1674 - 1748 ), cleric, poet, and author
SAMUEL, HOWEL WALTER ( 1881 - 1953 ), judge and politician
SAMUEL, WILLIAM THOMAS ( 1852 - 1917 ), musician
SAMWELL ( SAMWEL , SAMUEL ), DAVID ( 1751 - 1798 ), naval surgeon and poet
SANDBROOK, JOHN ARTHUR ( 1876 - 1942 ), journalist
SANDERS, IOAN ( fl . 1786 ), Methodist exhorter and hymn writer .
SANKEY, JOHN ( 1866 - 1948 , 1929 , 1932 ), lawyer
SAUNDERS, DAVID ‘ II ’ ( Dafydd Glan Teifi 1769 - 1840 ), Baptist minister, poet, and writer
SAUNDERS, DAVID ( 1831 - 1892 ), Calvinistic Methodist minister, preacher, educationist, and defender of Protestantism
SAUNDERS, ERASMUS ( 1670 - 1724 ), divine
SAUNDERS, EVAN (d. 1742 ), deacon
SAUNDERSON, ROBERT ( 1780 - 1863 ), printer and publisher ,
SAUNDERS, THOMAS ( 1732 - 1790 ), Independent minister
SAUNDERS, WILLIAM ( 1806 - 1851 ), poet and writer
SAUNDERS, WILLIAM ( 1871 - 1950 ), minister (B) and educationalist
SAYCE, GEORGE ETHELBERT ( 1875 - 1953 ), journalist and newspaper proprietor
SCOTT-ELLIS, THOMAS EVELYN ( 1880 - 1946 ), and , landowner and sportsman, writer, and patron of the arts
SCOURFIELD, alias PHILIPPS ,Sir JOHN HENRY ( 1808 - 1876 ), author
SCUDAMORE family, of Herefordshire .
SEAGER, GEORGE LEIGHTON ( 1896 - 1963 , 1962 ) merchant and shipowner
SEAGER, JOHN ELLIOT ( 1891 - 1955 ), shipowner
SEFNYN , an Anglesey poet of the second half of the 14th cent.
SEIRIOL ( c. 500- c. 550 ), founder and first abbot of Penmon church
SEISYLL ap CLYDOG ( fl. 730 ), first king of the combined realm of Ceredigion and Ystrad Tywi .
SEISYLL BRYFFWRCH ( fl. 1155 - 1175 ), poet .
SEYLER, CLARENCE ARTHUR ( 1866 - 1959 ), chemist and public analyst
SHADRACH, AZARIAH ( 1774 - 1844 ), schoolmaster, Independent minister, and author
SHANKLAND, THOMAS ( 1858 - 1927 ), bibliophile and historian .
SHEEN, THOMAS ( 1718 - 1790 ), Methodist exhorter, afterwards an Antinomian .
SHIPLEY, WILLIAM DAVIES ( 1745 - 1826 ), cleric
SHORT, THOMAS VOWLER ( 1790 - 1872 ), bishop of S. Asaph
SIANCYN FYNGLWYD ( fl. c. 1470 ), poet
SIBLY,Sir THOMAS FRANKLIN ( 1883 - 1948 ), geologist and university administrator
SIDDONS, SARAH ( 1755 - 1831 ), actress
SIDNEY,Sir HENRY ( 1529 - 1586 ), of Penshurst , Kent , president of Wales from 1559 to his death,
SILS ap SION , a Glamorgan bard who flourished towards the end of the 16th cent.
SIMMONS or SIMONS , JOSEPH ( 1694? - 1774 ), Independent minister, and schoolmaster
SIMON, BEN ( c. 1703 - 1793 ), of Abergwili, Carms.
SIMON, JOHN ALLSEBROOK, 1st VISCOUNT SIMON of Stackpole Elidor ( 1873 - 1954 ), judge and politician
SIMWNT FYCHAN ( c. 1530 - 1606 ), a poet
SIÔN ap HOWEL ab OWAIN ( 1550? - 1626/7 ), translator
SION ap HYWEL ap LLYWELYN FYCHAN .
SION BRWYNOG (d. 1567? ), poet
SION CAIN ( c. 1575 - c. 1650 ), a herald bard
SION CENT ( 1367? - 1430? ), poet .
SION CERI ( fl. 1500?-1530? ), poet .
SION CLYWEDOG ( SION IEUAN CLYWEDOG ) ( fl. c. 1610-1630 ), poet .
SION DAFYDD ap SIENCYN ( SION ap DAFYDD ap SIENCYN , or SION DAFYDD SIENCYN ) .
SION LEIAF, ‘Syr ’ ( fl. c. 1480 ), poet and cleric
SION MOWDDWY ( fl. c. 1575-1613 ), poet .
SION TUDUR (d. 1602 ), poet .
SKAIFE,Sir ERIC OMMANNEY ( 1884 - 1956 ), brigadier and patron of Welsh culture
SKEEL, CAROLINE ANNE JAMES ( 1872 - 1951 ), historian
SKENE, WILLIAM FORBES ( 1809 - 1892 ), Scottish historian and Celtic scholar
SLINGSBY-JENKINS, THOMAS DAVID ( 1872 - 1955 ), secretary of a shipping company and philanthropist
SMITH, THOMAS ASSHETON ( 1752 - 1828 ), of Vaenol , Bangor , landed proprietor and quarry owner
SMITH, WILLIAM HENRY ( BILL 1894 - 1968 ) president of the Welsh National Opera Company
SMYTH, ROGER ( 1541 - 1625 ), Roman Catholic priest and Welsh translator
SNELL, DAVID JOHN ( 1880 - 1957 ), music publisher
SOMERSET family, of Raglan , Chepstow , and Troy (Mon.) , Crickhowell ( Brecknock ), Badminton (Glos.) , etc.
SOMERSET, FITZROY RICHARD ( 1885 - 1964 ) , soldier, anthropologist, author
SOULSBY,Sir LLEWELLYN THOMAS GORDON ( 1885 - 1966 ), naval architect
SOUTHALL, JOHN EDWARD ( 1855 - 1928 ), printer, publisher, author; a member of the Society of Friends
SOUTHALL, REGINALD BRADBURY ( 1900 - 1965 ), oil refinery director
SPARKS, JOHN ( 1726 - 1769 ), early Moravian ,
SPARK, THOMAS ( 1655 - 1692 ), cleric and classical scholar
SPOONER, JAMES ( 1789 - 1856 ), railway engineer
SPURRELL family, of Carmarthen , printers .
STANLEY family, of Penrhos , Anglesey .
STANLEY, (Sir ) HENRY MORTON ( alias ROWLANDS, JOHN ) ( 1841 - 1904 ), explorer, administrator, and author
STANTON, CHARLES BUTT ( 1873 - 1946 ), M.P. for the Merthyr and Aberdare constituency , 1915-1922
STAPLEDON,Sir REGINALD GEORGE ( 1882 - 1960 ), agricultural scientist
STEEGMAN, JOHN EDWARD HORATIO ( 1899 - 1966 ), author of books on art and architecture
STEPHEN, DAVID RHYS ( Gwyddonwyson 1807 - 1852 ), Baptist minister and author
STEPHEN, DOUGLAS CLARK ( 1894 - 1960 ), newspaper editor
STEPHEN, EDWARD (JONES) ( Tanymarian 1822 - 1885 ), musician
STEPHEN, ROBERT ( 1878 - 1966 ), schoolmaster, historian and poet
STEPHENS, JOHN OLIVER ( 1880 - 1957 ), Independent minister and professor at the Presbyterian College, Carmarthen
STEPHENSON, THOMAS ALAN ( 1898 - 1961 ), zoologist
STEPHENS, THOMAS ( 1821 - 1875 ), antiquary and literary critic
STEPHEN, THOMAS ( 1856 - 1906 ,) musician
STEPNEY (or STEPNETH ) family, of Prendergast, Pembs.
STONELAKE, EDMUND WILLIAM ( 1873 - 1960 ), politician and a key figure in establishing the Labour Party in the Merthyr Boroughs constituency
STRACHAN, GILBERT INNES ( 1888 - 1963 ), professor of medicine
STRADLING family, Glam.
SULIEN, ‘ Sulgenus ’, surnamed ‘ The Wise ’ 1011 - 1091 ,
SYMMONS family, of Llanstinan, Pembs.
SYMONDS, RICHARD ( 1609 - ? ), Puritan preacher .
SYPYN CYFEILIOG ( II ) , fl. 1340-1390 , poet .
