Daniel T. Ronk was born around 1843 in Lloyd, New York, to David and Sarah Ronk. His father was a farm laborer who owned $1,300 of personal property by 1860. He grew up and attended school in Lloyd, and by 1860, he was working as a farm laborer.
He enlisted in the Union army on August 11, 1862, and mustered in as a private in Company G of the 156th New York Infantry on November 17. The regiment took part in the siege of Port Hudson, the Red River campaign, and the Carolinas campaign. He was promoted to corporal on April 2, 1863, and then to sergeant on May 1, 1865. He mustered out in Augusta, Georgia, on October 23, 1865.
He returned to New York after the war, and he married Amanda Van Wagenen around 1867. Their daughter Hattie was born around 1868. By 1870, Ronk was working in a powder mill in Rosendale, New York. They moved to El Paso, Colorado, in the late 1800s, and Ronk worked as a carpenter there. By 1910, they were living in Northwood, New Hampshire. His wife died in 1917. By 1930, he was living with a nurse in Northwood. He died there of arteriosclerosis and “senility” on March 18, 1931.