Clarissa was the 2nd of 12 children born to:
Nathan Jasper Wixom, b. Nov. 22, 1806 in Hector, Schuyler County, NY. and d. Jul. 27, 1867 &
Betsy Eliza Hadlock, b. Apr. 16, 1811 in Franklin County, OH. and d. Feb. 24, 1890.

Nathan Wixom and Betsy Eliza Hadlock were marr. on Nov. 1, 1827, according to Scioto county, OH. Marriage Records for 1803-1860.

Nathan and Betsy Wixom's children were.
1. Reuben Hyrum Wixom, b. Jan. 3, 1829 in Sangamon County, IL. and d. Feb. 16, 1884 in San Bernardino, San Bernardino County, CA. Reuben marr. Elizabeth Hulet.
2. Clarissa Jane Wixom, b. Aug. 19, 1830 in Tazewell County, IL. and d. Oct. 1, 1905 in San Bernardino, San Bernardino County, CA. Clarissa marr. Charles Augustus Ferguson.
3. Elizabeth Wixom, b. Nov. 5, 1832 in LaSalle County, IL. and d. Feb. 14, 1885 in San Bernardino, San Bernardino County, CA. Elizabeth marr. Richard Mathews.
4. Mary Ann Wixom, b. Dec. 12, 1834 in La Salle, LaSalle County, IL. and d. May 29, 1927 in San Bernardino, San Bernardino County, CA. Mary Ann marr. Lucian Delancy Crandall Sr.
5. Willard Ammon Wixom, b. Nov. 23, 1836 in Mendota, LaSalle County, IL. and d. Jan. 14, 1916 in San Bernardino, San Bernardino County, CA. Willard marr. Ann Allen.
6. Julia Almira Wixom, b. 1838 and d. 1855
7. Nathan Jasper Wixom, b. Dec. 25, 1841 in Woodford County, IL. and d. Dec. 21, 1917 in San Bernardino, San Bernardino County, CA. Nathan marr. Rebecca Caitlain.
8. Eliza Ellen Wixom, b. Jan. 1, 1843 in Hancock County, IL. and d. Jun. 13, 1909 in San Bernardino, San Bernardino County, CA. Eliza marr. Charles Purciel and George Motschmann.
9. Cynthia Wixom, b. Dec. 3, 1845 in Nauvoo, Hancock County, IL. and d. Nov. 15, 1923 in San Gabriel, Los Angeles County, CA. Joseph Morton Payne.
10. David Hadlock Wixom, b. Feb. 7, 1848 in Council Bluffs, Pottawattamie county, IA. and d. Jan. 4, 1923 in San Bernardino, San Bernardino County, CA. David marr. Mary Ann Stutchberry.
11. Charles Walker Wixom, b. Jan. 17, 1851 in Springville, Utah County, UT. and d. Jan. 30, 1922 in San Bernardino County, CA. Charles marr. Martha Saisinette and Marcelina Maria Quintana Rubidoux.
12. Chauncy Henry Wixom, b. Aug. 7, 1853 in Monterey County, CA. and d. Feb. 6, 1886 in San Bernardino, San Bernardino County, CA. Chauncy marr. Eliza Alice Case.

Clarissa was the mother of:
William Henry Ferguson(1868-1888)
Emma Artinsa Ferguson (1864-1878)
Samuel Charles Ferguson(1863-)
Clara Jane Ferguson (1859-1893)
Mary Ellen Ferguson 1858-)
Benjamin Ferguson(1856-1905)
George Augusta Ferguson (1854-1923)
Rowena Ferguson Rose(1853-1891)
Sarah Lavina Ferguson Peck (1852-1929)