Thomas was the son of Archibald Hamilton and Mary "Polly" Hawkins.

"History of Tuscarawas County, Clay Township, Ohio", 1884, via Kerry Simi:
p. 358: " ... June 8, (1808) Thomas Hamilton, of Salem Township, was appointed Collector of taxes, and the following rates of taxation ordered: Horses, 30 cents per head; cattle 10 cents per head; all other taxable personal property, 25% of appraised value." p. 517: " ... In October 1809, Thomas Hamilton raised a house on the north bank of the river, near the southwest corner of the Gnadenhutten tract. One year later, Mathias Taylor built a cabin on the east side of the river, in the Gnadenhutten tract. His children were John, Ann, Mary Ann, and Rebecca. Mathias Taylor and family, William, Horatio, and John S. Petticoart, three brothers, and Thomas Hamilton, an unmarried young man, emigrated from North Carolina in 1804 and settled in the vicinity of Gnadenhutten. Thomas Hamilton was here married, in July, 1805, to Mary Ann Taylor, one of the earliest marriages in the county. Until 1809, the young couple dwelt in what is now Warwick Township. Mr. Hamilton remained a life-long resident of the county, and died in Clay Township in February, 1872, aged eighty-eighty years. His children were Archibald, Alexander, William, John, Mathias and Taylor. All the above were connected with the Moravian Church."
pp. 523-524: " ... The following have acted as Justices of the Peace: ... Thomas Hamilton, 1830; 1833, 1836 ..."
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Thomas married Mary Ann Taylor (1784-1825) on July 16, 1805 in Tuscarawas County, Ohio. Mary Ann was the daughter of Matthias Taylor and Mary Owen.

Thomas and Mary Ann were the parents of Archibald Alexander, William, John, Mary Magdalene, Matthias and Thomas Taylor.

Thomas married, as his second wife, Sarah Elizabeth Marlow on August 27, 1826 in Guernsey County, Ohio. Sarah was the daughter of Samuel Marlow and Mary Richards.

Thomas and Sarah were the parents of Ruanna, Roseanna, Sarah Caroline, Hiram Lewis and Leonard D.