Listed with his son James E. (23) and daughter Alice (16) in 1880, as a widower.
Bio from History of Knox County -
"Colopy, Jonathan, farmer and stock-raiser, Brown township; post office, Democrat; son of Jacob and Delila Colopy; born July 17, 1828, in Jefferson township, Knox county, Ohio, where he was reared, receiving a common-school education, after which he remained with his father until the ninteenth of Feb 1856, when, at the age of twenty-eight years, he was united in marriage with Sarah J Berry, daughter of James and Lucy Berry, born in Guernsey county, October 1, 1832.  He afterwards located in Brown township, Knox county, on a farm of eighty acres, given him by his father-in-law, James Berry.  Three years afterward, in the spring of 1859, he bought adjoining him on the west, forty acres; and in 1861, two hundred and seventy-five acres on the south and southwest; in 1868, ten acres on the west; in 1871, eighty-two acres on the north; in 1872, twenty more on the north; in 1878 and 1880, forty-five acres on the southeast, making in all five hundred and ninety-two acres, where he now resides.  He is also the owner of three hundred and eighty acres in Union township, Knox county, making a total of one thousand acres.  Mr Colopy also owns a share in the woolen mills at Gann; is also the owner of a portable saw-mill.  He is considered an energetic and shrewd farmer.
Notwithstanding all his losses, he has accumulated a large amount of property.  From 1877 to 1880 he paid ten thousand dollars security money, but is nevertheless at present erecting a very fine dwelling house at a cost of five thousand dollars.  The union of Mr and Mrs. resulted in three children, viz: James E., born Dec 6, 1856,  Lucy B., born Oct 13, 1858; who, on the seventh day of October, 1879, married Louis G Welker, of Howard township, Knox county, where she at present resides on a farm given her by her father; Mary A., born May 3, 1864, all of whom are living.  Mrs. Colopy died September 17, 1864, aged thirty-two years.  Mr. Colopy at present remains a widower.