According to the 29 July 1870 Census, Charles F. Clark, age 38, was living in Dayton, Ward 5, with his wife Annie (age 28) and his 2 months year old son Eddie. His occupation was Retail Grocer. Nancy Duncan, age 63, was a Domestic in the house. He lived next door to Henry Frey, age 36, a Retail Grocer. Charles T. Clark and his family were living at 11 Bridge St., Dayton, Ohio.