| Surname | Given name | Location | Item |
| Salisbury | St. Salvadore | Illinois | Greenville, Bond County, Illinois Poll Book, 16 May 1863 Election |
| Sawhill | James | Ohio | 1841-1860 Washington Presbyterian Church Minutes, Guernsey County, Ohio |
| Sawhill | William | Ohio | 1841-1860 Washington Presbyterian Church Minutes, Guernsey County, Ohio |
| Schanzenbacher | Helen | Kentucky | Cadiz High School, Trigg County, Kentucky, 1924 commencement exercises program |
| Schuert | Peter | Illinois | Greenville, Bond County, Illinois Poll Book, 16 May 1863 Election |
| Scott | Susan | Pennsylvania | Faulkner Automotive Group of Philadelphia dealership nameplate |
| Scritch | James M. | Illinois | Greenville, Bond County, Illinois Poll Book, 16 May 1863 Election |
| Scroggs | Jacob | Ohio | Morgan County, Ohio 1864 Union Presidential Ticket ballot |
| Seabury | Hattie E. | Massachusetts | 1890 New Bedford, Massachusetts photo album: Hattie Seabury Davis (1871–1955) |
| Seabury | Mary Catherine | Massachusetts | 1890 New Bedford, Massachusetts photo album: Hattie Seabury Davis (1871–1955) |
| Sealock | Mary Elizabeth | Missouri | Winifred Louise Hooper Family Photos, ca. 1905-1912, Trenton, Missouri |
| Seybert | Jesse Morgan | Illinois | Greenville, Bond County, Illinois Poll Book, 16 May 1863 Election |
| Shaw | Minot G. | Massachusetts | 1890 New Bedford, Massachusetts photo album: Leonard Clifton Lapham (1871–1929) |
| Sheffield | William | Ohio | Morgan County, Ohio 1864 Union Presidential Ticket ballot |
| Shoemaker | Henry | Illinois | Greenville, Bond County, Illinois Poll Book, 16 May 1863 Election |
| Sisson | Emma | Massachusetts | 1890 New Bedford, Massachusetts photo album: Charlotte “Lottie” May Allen (1871–1954) |
| Skinner | William | Ohio | 1841-1860 Washington Presbyterian Church Minutes, Guernsey County, Ohio |
| Slade | Edward Nichols | Massachusetts | 1890 New Bedford, Massachusetts photo album: Helen Curtis Hervey (1872–1923) |
| Slade | Lucia Hervey | Massachusetts | 1890 New Bedford, Massachusetts photo album: Helen Curtis Hervey (1872–1923) |
| Slaughter | John | Ohio | 1841-1860 Washington Presbyterian Church Minutes, Guernsey County, Ohio |
| Slaughter | Jonathan A. | Illinois | Greenville, Bond County, Illinois Poll Book, 16 May 1863 Election |
| Slaughter | Philip | Ohio | 1841-1860 Washington Presbyterian Church Minutes, Guernsey County, Ohio |
| Slocum | Abram | Massachusetts | 1890 New Bedford, Massachusetts photo album: Edward M. Slocum (1871–1949) |
| Slocum | Albert Wood | Massachusetts | 1890 New Bedford, Massachusetts photo album: Ruth Emma Pease (1871 – 1965) |
| Slocum | Almira “Myra” | Massachusetts | 1890 New Bedford, Massachusetts photo album: Edward M. Slocum (1871–1949) |
| Slocum | Edward Manchester | Massachusetts | 1890 New Bedford, Massachusetts photo album: Edward M. Slocum (1871–1949) |
| Slocum | Evelyn M. | Massachusetts | 1890 New Bedford, Massachusetts photo album: Ruth Emma Pease (1871 – 1965) |
| Slocum | Frances | Massachusetts | 1890 New Bedford, Massachusetts photo album: Edward M. Slocum (1871–1949) |
| Slocum | Frederick E. | Massachusetts | 1890 New Bedford, Massachusetts photo album: Edward M. Slocum (1871–1949) |
| Slocum | Frederick, Capt. | Massachusetts | 1890 New Bedford, Massachusetts photo album: Edward M. Slocum (1871–1949) |
| Slocum | Frederick, Dr. | Massachusetts | 1890 New Bedford, Massachusetts photo album: Dr. Frederick Slocum (1873 – 1944) |
| Slocum | Gladys | Massachusetts | 1890 New Bedford, Massachusetts photo album: Ruth Emma Pease (1871 – 1965) |
| Slocum | Henry | Massachusetts | 1890 New Bedford, Massachusetts photo album: Ruth Emma Pease (1871 – 1965) |
| Slocum | Henry S. | Massachusetts | 1890 New Bedford, Massachusetts photo album: Edward M. Slocum (1871–1949) |
| Slocum | Lois | Massachusetts | 1890 New Bedford, Massachusetts photo album: Edward M. Slocum (1871–1949) |
| Smith | Albert F. | Illinois | Greenville, Bond County, Illinois Poll Book, 16 May 1863 Election |
| Smith | Alfred | Massachusetts | 1890 New Bedford, Massachusetts photo album: Gertrude Alice Smith (1870–1952) |
| Smith | Alfred E, | Massachusetts | 1890 New Bedford, Massachusetts photo album: Gertrude Alice Smith (1870–1952) |
| Smith | Cyrus Jefferson | Illinois | Greenville, Bond County, Illinois Poll Book, 16 May 1863 Election |
| Smith | George | Illinois | Greenville, Bond County, Illinois Poll Book, 16 May 1863 Election |
| Smith | Gertrude Alice | Massachusetts | 1890 New Bedford, Massachusetts photo album: Gertrude Alice Smith (1870–1952) |
| Smith | Grace D. | Massachusetts | 1890 New Bedford, Massachusetts photo album: Gertrude Alice Smith (1870–1952) |
| Smith | Helen | Massachusetts | 1890 New Bedford, Massachusetts photo album: Gertrude Alice Smith (1870–1952) |
| Smith | Henry H. | Illinois | Greenville, Bond County, Illinois Poll Book, 16 May 1863 Election |
| Smith | Henry W. | Massachusetts | Class of 1890 New Bedford, Massachusetts photo album |
| Smith | Henry W. | Ohio | Morgan County, Ohio 1864 Union Presidential Ticket ballot |
| Smith | Jane | Massachusetts | Jim Wade photograph, ca. 1867, Boston, Massachusetts |
| Smith | John B. Sr. | Ohio | 1841-1860 Washington Presbyterian Church Minutes, Guernsey County, Ohio |
| Smith | John J. | Illinois | Greenville, Bond County, Illinois Poll Book, 16 May 1863 Election |
| Smith | Josephine | Massachusetts | 1890 New Bedford, Massachusetts photo album: Gertrude Alice Smith (1870–1952) |
| Smith | Maude M. | Massachusetts | 1890 New Bedford, Massachusetts photo album: Cyrus Chapman Howland (1871–1920) |
| Smith | Robert W. | New York | Paul Marion and Pauline Mary Faulkner, October 1913 photograph |
| Smith | Samuel | Illinois | Greenville, Bond County, Illinois Poll Book, 16 May 1863 Election |
| Smith | Sarah | Kentucky | 1852 Letter: Luther Howard of Louisville, Jefferson County, Kentucky, to Flecher Archer |
| Smith | Sarah A. | Massachusetts | 1890 New Bedford, Massachusetts photo album: Edward M. Slocum (1871–1949) |
| Smith | Susan S. | Massachusetts | 1890 New Bedford, Massachusetts photo album: Anna Collins Ricketson (1871–1949) |
| Smith | Sydney Freeman | Massachusetts | 1890 New Bedford, Massachusetts photo album: Gertrude Alice Smith (1870–1952) |
| Smith | Theodore | Illinois | Greenville, Bond County, Illinois Poll Book, 16 May 1863 Election |
| Smith | William Beaumont | Missouri | Cora Gabrielle Curns Smith photograph, ca. 1890s, St. Louis, Missouri |
| Smith | W. N. | Illinois | Greenville, Bond County, Illinois Poll Book, 16 May 1863 Election |
| Smith | William Ernest | Massachusetts | 1890 New Bedford, Massachusetts photo album: Gertrude Alice Smith (1870–1952) |
| Smith | William S. | Illinois | Greenville, Bond County, Illinois Poll Book, 16 May 1863 Election |
| Smith | William S., Jr | Illinois | Greenville, Bond County, Illinois Poll Book, 16 May 1863 Election |
| Spencer | Sallie | Kentucky | Pearl H. Mountjoy Autograph Book |
| Sprague | Barton | Massachusetts | Jim Wade photograph, ca. 1867, Boston, Massachusetts |
| Sprague | Romulus C., Dr. | Illinois | Greenville, Bond County, Illinois Poll Book, 16 May 1863 Election |
| Spratt | William | Illinois | Greenville, Bond County, Illinois Poll Book, 16 May 1863 Election |
| Sproat | Alexander | Ohio | 1841-1860 Washington Presbyterian Church Minutes, Guernsey County, Ohio |
| Sproat | Joseph Newton | Ohio | 1841-1860 Washington Presbyterian Church Minutes, Guernsey County, Ohio |
| Stahl | William | Illinois | Greenville, Bond County, Illinois Poll Book, 16 May 1863 Election |
| Stall | Ellen M. | Massachusetts | 1890 New Bedford, Massachusetts photo album: May Eleventh Stetson (1872–1901) |
| Stanberry | James R. | Ohio | Morgan County, Ohio 1864 Union Presidential Ticket ballot |
| Stearns | Edward | Illinois | Greenville, Bond County, Illinois Poll Book, 16 May 1863 Election |
| Steel | James Alverson | Illinois | Greenville, Bond County, Illinois Poll Book, 16 May 1863 Election |
| Steel | Thomas L. | Illinois | Greenville, Bond County, Illinois Poll Book, 16 May 1863 Election |
| Stetson | George | Massachusetts | 1890 New Bedford, Massachusetts photo album: May Eleventh Stetson (1872–1901) |
| Stetson | George R. | Massachusetts | 1890 New Bedford, Massachusetts photo album: May Eleventh Stetson (1872–1901) |
| Stetson | James | Massachusetts | 1890 New Bedford, Massachusetts photo album: May Eleventh Stetson (1872–1901) |
| Stetson | Jane | Massachusetts | 1890 New Bedford, Massachusetts photo album: May Eleventh Stetson (1872–1901) |
| Stetson | May Eleventh | Massachusetts | 1890 New Bedford, Massachusetts photo album: May Eleventh Stetson (1872–1901) |
| Stetson | Nellie | Massachusetts | 1890 New Bedford, Massachusetts photo album: May Eleventh Stetson (1872–1901) |
| Stevens | Owen C. | Missouri | Winifred Louise Hooper Family Photos, ca. 1905-1912, Trenton, Missouri |
| Stevenson | Samuel | Illinois | Greenville, Bond County, Illinois Poll Book, 16 May 1863 Election |
| Stewart | Stephen Davis | Illinois | Greenville, Bond County, Illinois Poll Book, 16 May 1863 Election |
| Stubblefield | William H. | Illinois | Greenville, Bond County, Illinois Poll Book, 16 May 1863 Election |
| Swan | Mabel L. | Massachusetts | 1890 New Bedford, Massachusetts photo album: Charles Prescott Emerson (1870–1951) |
| Sybert | William B. | Illinois | Greenville, Bond County, Illinois Poll Book, 16 May 1863 Election |
