The History of Hendricks County (Chicago: Interstate Publishing, 1885)--Center Township, page 508
Thomas Clark, of the firm of Clark & Co., butchers and cattle dealers, is a native of Hendricks County, Ind. He was born near Danville, April 13, 1848, and is a son of S. G. and Mary A. (Mount) Clark, both of whom are deceased. He lived with his parents till he was twenty years old, then engaged in the marble trade with Samuel Steele under the firm name of Steele & Clark, he having worked at the same business some time with Mr. Steele. He retired from the firm in 1877 and opened a meat market at Danville, being associated with different partners till 1884, when his present partner was admitted to the firm, the firm name being Clark & Co. Mr. Clark enlisted in the late war in Company C, One Hundred and Forty-eighth Indiana Infantry, Feb. 1, 1865, and was discharged Sept. 5 of the same year. He was married Jan. 11, 1870, to Miss Melissa Adams, of Des Moines, Iowa. They have one child--Ada. He and his wife are members of the Methodist Episcopal Church of Danville. Mr. Clark began life with no means, but through his own efforts he has built up a permanent and profitable business, his market being the oldest in Danville.