| Birth | 25 Jun 1838 | John Henry Clary was born on 25 Jun 1838 in Frederick County, Maryland. |
| Marriage | 13 Sep 1860 | He and Cordelia Elizabeth Harding, daughter of William Harding, were married on 13 Sep 1860 in Frederick County, Maryland. |
| 1870 Census | 13 Jul 1870 | John Henry Clary appeared as head of household in the 1870 Federal Census of Pottawatomie, Pottawatomie County, Kansas, as John H. Clary. Living with him was his wife, Cordelia, and their children, Lillian, Clyde and Raymond. He is a white male, age 31. His occupation is farmer. His real estate is valued at $3500 and his personal estate at $700. He was born in Maryland. He is a male citizen of the U.S. of 21 years of age and up. |
| 1880 Census | 11 Jun 1880 | John Henry Clary appeared as head of household in the 1880 Federal Census of Pottawatomie, Pottawatomie County, Kansas, as John Clary. Living with him was his wife, Cordelia, and their children, Lillian, Clyde and Raymond. He is a married white male, age 41. His occupation is farming. He was born in Maryland. His mother and father were born in Maryland. |
| 1900 Census | 4 Jun 1900 | John Henry Clary appeared as head of household in the 1900 Federal Census of Pottawatomie, Pottawatomie County, Kansas, as John H. Clary. Living with him was his wife, Cordelia, and their children, Lillian, Clyde and Raymond. He is a married white male, age 61. He was born June 1838. He has been married 39 years. He was born in Maryland. His mother and father were born in Maryland. His occupation is farmer. He was unemployed 0 months. He can read, write, and speak English. He owns his home, free of mortage. It is a farm, number 12 on the farm schedule. |
| 1910 Census | 18 Apr 1910 | John Henry Clary appeared as head of household in the 1910 Federal Census of Pottawatomie, Pottawatomie County, Kansas, as J. H. Clary. Living with him was his wife, Cordelia, and their children, Lillian, Clyde and Raymond. He is a married white male, age 71. Married 49 years. He was born in Maryland. His mother and father were born in Maryland. He can speak english. His occupation is farming on a general farm. He was not out of work on April 15, 1910. He can read and write and did not attend school in the year. |
| Death | 26 Aug 1912 | John Henry Clary died on 26 Aug 1912 in Pottawatomie County, Kansas, at age 74. |
| Burial | after 26 Aug 1912 | He was buried after 26 Aug 1912 in Admatha/Jenkins Cemetery, located in Westmoreland, Pottawatomie County, Kansas.  |
John Henry Clary