| Father | John Bailey Williston (1825 - 1907) |
| Mother | Mary Eliza Ullock (1830 - 1889) |
| Sibling | Thomas Able Williston ( - ) |
| Sibling | Donald T Williston ( - ) |
| Sibling | Lottie Williston (1855 - ) |
| Sibling | William R Williston ( - ) |
| Sibling | William R Williston (1865 - 1931) |
| Sibling | Caroline P. Williston (1860 - ) |
| Sibling | Thomas A Williston (1854 - 1929) |
| Sibling | Maggie J Williston (1886 - ) |
| Sibling | Isabel E Williston (1873 - ) |
| Sibling | Margaret Goodfellow Williston (1882 - 1951) |
| Sibling | Thomas Ullock Williston (1854 - 1855) |
| Sibling | Dan Williston ( - ) |
| Sibling | John Edward Bailey Williston (1880 - 1921) |
| Sibling | George S. Williston (1900 - ) |
| Sibling | Charlotte Elizabeth Williston (1864 - ) |
| Sibling | Joseph L. W Williston (1859 - 1914) |
| Sibling | James Gulliver ( - ) |
| Sibling | Luther Williston II (1853 - 1922) |
| Sibling | Donald Sargent Williston (1868 - 1943) |
| Sibling | John Williston (1859 - 1933) |