There are unique defendant surnames beginning with S:

Sabin	Sabine	Sager	Sagore	Sagroves	Said	Sanders
Sanderson	Sarahox	Sarver	Sawmill	Saxton	Sayre	Schatz
Scheiderer	Schlaback	Schlegel	Schmelzer	Schmidt	Schneider	Schoby
Schonethal	Scott	Seaman	Sears	Seely	Sells	Selover
Severe	Shackelford	Shafer	Shanks	Sharp	Shaw	Shearer
Sheets	Shelton	Shertler	Shetterly	Shields	Shipley	Shipp
Shirey	Shirk	Shope	Shover	Shrader	Shriver	Shroll
Shuman	Siders	Silverthorne	Silvey	Simmons	Simpson	Sinclair
Sisters	Skeels	Skidmore	Sloop	Sludebaker	Smart	Smiley
Smith	Smith and Nixon Piano Company	Sneed	Snider	Snodgrass	Snyder	Solomon
Southard	Southard and Brother	Spain	Speakman	Spearman	Spellan	Spencer
Spicer	Spragg	Spratt	Spring	Springfield, Mt. Vernon and Pittsburgh Railroad Co	Spurrier	Staats
Stahel	Stahl	Staley	Stamates	Stanford	Stark	Starkey
Starman	Stephens	Sterdy	Sterling	Stevenson	Stiggers	Stillings
Stiner	Stokes	Stoll	Stone	Stoner	Storms	Stover
Stowers	Stratton	Straus	Strickland	Stricklin	Strong	Stubb
Stultz	Sturdy	Suddeth	Sullivan	Sutton	Swartz	Swearingin
Swisgood