Seymour Shafter, California – Gen. William Rufus Shafter Shaftsbury, Vermont – Earl of Shaftesbury (note spelling) Shakopee, Minnesota – Shakopee (Native American chief) Shapleigh, Maine – Major Nicholas Shapleigh (proprietor) Sharon, California – William Sharon (financier) Sharpsburg, Kentucky – Moses Sharp Sharpsburg, Pennsylvania – James Sharp (proprietor) Shaver Lake, California – C.B. Shaver (irrigation company founder) Shaver Lake Heights, California – C.B. Shaver (irrigation company founder) Sheffield, Iowa – James Sheffield (railroad contractor) Shelburne, 3 places in Massachusetts, New Hampshire, and Vermont – William Petty, 2nd Earl of Shelburne Shelby, New York – Gen. Isaac Shelby Shelbyville, 3 places in Illinois, Indiana, and Missouri – Gen. Isaac Shelby Shepherd, Michigan – I.N. Shepherd (founder) Shepherdstown, West Virginia – Capt. Thomas Shepherd Sheridan, Montana and Sheridan, Wyoming – General Philip Sheridan (Union cavalry leader in the American Civil War) Sherman, Michigan – Gen. William T. Sherman Sherman, New York – Roger Sherman (Founding Father) Sherman, Texas – Sidney Sherman (Texian patriot) Shirley, Maine – William Shirley (indirectly, via Shirley, Massachusetts) Shirley, Massachusetts – William Shirley (governor of Massachusetts) Shirleysburg, Pennsylvania – William Shirley (governor of Massachusetts) Shoup, Idaho – George L. Shoup (U.S. Senator) Shreveport, Louisiana – Captain Henry Shreve, who opened the Red River, which runs through Shreveport, to marine navigation Shrewsbury, Massachusetts – George Talbot, 6th Earl of Shrewsbury Shrewsbury, Vermont – Earl of Shrewsbury Shullsburg, Wisconsin – Jesse W. Shull (settler) Shutesbury, Massachusetts – Samuel Shute (governor of Massachusetts) Sicard Flat, California – Theodore Sicard (early settler) Sidney, Iowa – Sir Phillip Sidney (English author) (indirectly, after Sidney, Ohio) Sidney, Maine and Sidney, Ohio – Sir Philip Sidney (English author) Sidney, Montana – Sidney Walters (son of settlers) Sidney, Nebraska – Sidney Dillon (railroad attorney) Sidney, New York – Admiral Sir Sidney Smith Sigel, Illinois – Gen. Franz Sigel Sigourney, Iowa – Lydia Sigourney (poet) Sikeston, Missouri – John Sikes (founder) Silsbee, California – Thomas Silsbee (local rancher) Silsbee, Texas – Nathaniel D. Silsbee (railroad investor) Simpsonville, Kentucky – John Simpson (U.S. representative) Sinclairville, New York – Samuel Sinclair (settler) Sinton, Texas – David Sinton Skilesville, Kentucky – James R. Skiles Slates Hot Springs, California – Thomas B. Slate (owner, founder) Slatersville, Rhode Island – Samuel Slater (founder) Slaughters, Kentucky – G.G. Slaughter (settler) Slayton, Minnesota – Charles Slayton (founder) Sleepy Eye, Minnesota – Ishanumbak (Native American chief whose eyes were said "to have the appearance of sleep.")