Thomas P. Coon is the son of John Elbert Coon and Adaline Susan Everett/Evoritt.

He is 1 of 10 known children of John and Adaline. His siblings are:
•Amos Lyford Coon (1857–1931)
•Arvaxenia A. Coon Smith (1858–1940)
•Harriet Cargie "Hettie" Coon Shockey (Abt 1860-Aft 1900)
•Charles Marion Coon (1862-1895)
•Martha Frances Coon Logan (1863–1957)
•Jacob Henry "Jake" Coon (1868–1941)
•Joseph M. Coon (1870–1957)
•Morris Waldo Coon (1873–1965)
•Adaline Susan Coon Travis (1878–1960)
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Per the 1870 U.S. Census, Thomas Coon resided in Washington Township, Mercer County, Missouri with his parents. Listed are:
-John C Coon, age 34, born Ohio
-Adaline Coon, age 32, born Ohio
-Amos L Coon, age 13, born Missouri
-Arvazana Coon, age 11, born Missouri
-Hettie C Coon, age 10, born Missouri
-Charles Coon, age 7, born Missouri
-Martha Coon, age 7, born Missouri
-Thomas Coon, age 4, born Missouri
-Jacob Coon, age 2, born Missouri
-Margaret Evoritt*, age 72, born Virginia

*NOTE: Margaret Evoritt is Adaline's mother
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Per the 1880 U.S. Census, Thomas Coon resided in Washington Township, Mercer County, Missouri with his parents. Listed are:
-John E. Coon, age 44, born Ohio
-Adaline Coon, age 42, born Ohio
-Charles M. Coon, age 17, born Missouri
-Marthey F. Coon, age 17, born Missouri
-Thomas P. Coon, age 14, born Missouri
-Jacob H. Coon, age 11, born Missouri
-Joseph M. Coon, age 9, born Missouri
-Morris W. Coon, age 6, born Missouri
-Adela S. Coon, age 1, born Missouri
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On 28 Nov 1889, Thomas married Ida Catherine Smith, the daughter of Isaac Smith and Catherine Schwin.

Per the 1910 U.S. Census, Thomas and Ida Coon resided in Washington Township, Mercer County, Missouri. Listed are:
-Thomas Coon, age 44, born Missouri
-Ida Coon, age 40, born Missouri
-Johnie Coon, age 19, born Missouri
-Stella Coon, age 17, born Missouri
-Gladys Coon, age 16, born Missouri
-Nellie Coon, age 14, born Missouri
-Lilly Coon, age 9, born Missouri
-Minnie Coon, age 6, born Missouri

In 1910, Thomas and Ida are listed as married for 20 years. Ida is listed with 6 children born and 6 children living.
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Thomas and Ida Coon are known to have 6 children:
•John E. Coon (1891-1936)
•Stella May Coon Stewart (1892-1982)
•Gladys A. Coon Burkeybile Collings (1893-1980)
•Nellie E. Coon Higgins Kendal (1895-1986)
•Lilly F. Coon Miller (1901-1978)
•Minnie L. Coon Miller (1904-1987)
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Missouri Death Certificate: 13251
-Name: Thomas P. Coon
-Gender: Male
-Died: 15 Apr 1932
-Age: 66 y, 1m, 2d
-Birth Date: 13 Mar 1866
-Birth Place: Mercer County
-Marital Status: Married
-Spouse: Ida Coon
-Father: John E. Coon
-Father's Birth Place Ohio
-Mother's Maiden Name: Evoritt
-Mother's Birth Place: Ohio
-Place of Death: Washington Township, Mercer County, Missouri
-Cause of Death: Suicide hanging from barn rafters on farm
-Informant, Ida Coon, Mill Grove, Washington, Mercer, MO;
-Burial Date: 17 Apr 1932
-Burial Place: Coon Cemetery