John's mother Sinclair T. Chitty married his father Thomas Kincaid Blake Jr. at the age of 15. In 1885 John married Katherine Euphrasia Aldrich in Grand Rapids while still in the service. Together they lived in the officers' quarters at
Fort Leavenworth, where John's first son Aldrich Blake was born on November 6, 1885. In 1888 Katherine, being pregnant with John's second son, persuaded him to resign from the military and return to Grand Rapids. He agreed, and on September 19, 1889, Ledyard Blake was born. ==Death==