- Sidlinker, Emma
- Sidney, Louisa
- Sieberline, Jacob
- Sieberling, Henry
- Sieckowski, Joseph
- Sieckowski, Louis
- Sieckowski, Stanley
- Siegal, --
- Siegel, Jennifer
- Sigma Pi Delta Sorority
- Sign Shop and Flag Center
- Sikora, John
- Sikora, Josephine
- Silphen, Sue
- Silver currency flow suspended
- Silver Shirt Organization
- Silver, Helen
- Silverman, Benjamin
- Silverman, Dora
- Silverman, Ernest
- Silverman, Larry
- Silverman, Louis
- Silverman, Louis A.
- Silverman, Philip
- Silverman, Sidney
- Simard and Sons
- Simard Violin Quartette
- Simard, Adrienne
- Simard, Angelina
- Simard, Armanda
- Simard, Bert
- Simard, Corinne
- Simard, Isaie
- Simard, Leon
- Simard, Omer
- Simard, Paul
- Simard, Wilfred
- Simard, Wilfred Mrs.
- Simes, S.
- Simmonds, Annie
- Simmons, (the sculptor)
- Simmons, --Sculptor
- Simmons, Augustine
- Simmons, Dorothy
- Simmons, Emma J.
- Simmons, Franklin
- Simmons, Jack
- Simmons, Loring
- Simmons, Margo
- Simmons, W. H.
- Simonds, Lucie
- Simonds, William
- Simoneau, Dan
- Simoneau, Rose
- Simones, Charles
- Simones, Christine
- Simones, Elaine
- Simones, George
- Simones, George Mrs.
- Simones, Jimmy
- Simones, Nestor
- Simones, Roxanne
- Simonis Family
- Simons, Ellen
- Simons, Esther Ann
- Simons, Sarah
- Simons, William
- Simpson, David
- Simpson, George H.
- Simpson, James K. P.
- Simpson, John
- Simpson, Lucretia D.
- Simpson, M.
- Simpson, Pauline
- Simpson, William
- Sinclair, Elery J.
- Sinclair, Joseph
- Sincler, Archie
- Sincler, Conrad
- Sincler, Lucien
- Sing, Charles
- Singer Co.
- Singer, A.
- Singer, Abraham
- Singer, David
- Singer, T.
- Singerman, Jerome
- Singers -- Lewiston (ME)
- Siragusa, James
- Sirois, Gerard E.
- Sirois, Helene
- Sirois, Herbert
- Sirois, Joseph
- Sirois, Michelle L.
- Sirois, Victoria
- Sisters of Charity
- Sisters of Mercy
- Sisters of Notre Dame
- Sisters of Sion
- Sisters of St. Joseph of Lyons
- Sisters of the Presentation of Mary
- Sisters' Hospital
- Six Corners (Auburn area)
- Six Corners Nursery and Landscaping
- Sixth Street Congregational Church, Auburn
- Skating rinks
- Skelton, Abi W.
- Skelton, Harold
- Skelton, Harold Mrs.
- Skelton, Hattie
- Skelton, Nathaniel E.
- Skelton, Richard
- Skelton, Taintor, Abbott and Orestis
- Skelton, Thomas
- Skelton, W.
- Skelton, W. B.
- Skelton, William B.
- Skelton, William Mrs.
- Skelton, Wm.
- Skiff and Gaylord Minstrels
- Skillin, Doris
- Skillings, Ann
- Skillings, Charles
- Skillings, Fannie
- Skillings, Hannah
- Skillings, Harlan
- Skillings, J.D.
- Skillings, Lucy
- Skillings, Mary
- Skillins, Orrin
- Skinner & Co.
- Skinner & Co., J.A.
- Skinner M.D., D.M.
- Skinner Street
- Skinner, A.E.
- Skinner, A.E. (Miss)
- Skinner, Addie
- Skinner, Andrew
- Skinner, Daniel
- Skinner, David
- Skinner, Davis
- Skinner, Elizabeth
- Skinner, Euberto
- Skinner, Francis
- Skinner, Francis and Co.
- Skinner, Frank
- Skinner, Freeman
- Skinner, J.A.
- Skinner, Joanna
- Skinner, John
- Skinner, John A.
- Skinner, Joseph
- Skinner, Lizzie
- Skinner, Marcia J.
- Skinner, Maria
- Skinner, Ralph
- Skinner, Ralph B.
- Skinner, Sarah
- Skinner, Stephen
- Skinner, Welthy
- Skinner, Welthy Mrs.
- Skinner, William
- Skofield, R.
- Skofield, William, Mrs.
- Skolfield, A.J., Mrs.
- Skolfield, Alice
- Skolfield, Wm., Mrs.
- Skossi, Maria
- Skowhegan, Me -- Franco-American community
- Slate quarries
- Slattery, John F.
- Slattery, Margaret
- Slattery, Patrick
- Slaughter house on Switzerland Rd.
- Slavery
- Slayton, William
- Sledeway, William
- Sleds
- Sleeper (infant)
- Sleeper, -- (son)
- Sleeper, Carney
- Sleeper, Dr.
- Sleeper, E.H. (Mr.)
- Sleeper, Eben
- Sleeper, Eben H.
- Sleeper, F.E.
- Sleeper, Frank E.
- Sleeper, Fred
- Sleeper, Fred C.L.
- Sleeper, H.S.
- Sleeper, Jacob
- Sleeper, Jennie L.
- Sleeper, John R.
- Sleeper, Jonathan
- Sleeper, Mary
- Sleeper, Nathan
- Sleeper, Sophronia
- Sleeper. --(a girl)
- Sloat, Benjamin
- Slocum, William