Private John J. Vendrick was born on April 2nd, 1845 at Quincy, Gadsden County, Florida.
In 1860 he was living near Quincy, Gadsden County, Florida, at his father Wiley’s residence along with his mother Marinda and his older brother Nathan. His father was a farmer of no small means, who reported holding real estate in the value of $2,200, and a personal estate valued at $2,000. Both John and his older brother were educated, having attended school with 12 months of the census.
John and his brother enlisted on March 28th, 1862 at Quincy, Gadsden County, Florida in Captain Davidson’s Company; John stated his age as 16.
John was reported present with the company from the date of his enlistment, and was present with it when it surrendered at Durham Station, North Carolina on April 26, 1865. He was paroled at Greensboro, North Carolina on May 1st, 1865.
After the war, John relocated to Brundidge, Pike County, Alabama and married Adella (née Ward). Adella passed on July 7th, 1888. John remarried to Martha Emma (née Cason); she passed on June 9th, 1904.
John died on June 21st, 1911 and is interred at Brundidge City Cemetery, Brundidge, Pike County, Alabama
 According to the 1860 census, John was born ca. 1848, making him 14 years old at the time of enlistment. His brother Nathan was recorded as being born ca. 1845 and reported his age as 17.