When John Thomas Squires was born in 1873, in Orange, North Carolina, United States, his father, James Jones Squires, was 26 and his mother, Susan Frances Paul, was 26. He married Eva Lena Davis on 24 December 1905, in Rowan, North Carolina, United States. They were the parents of at least 1 son and 2 daughters. He lived in Chapel Hill, Orange, North Carolina, United States in 1920 and East Flanders, Belgium in 1959. He died on 28 September 1959, in Durham, Durham, North Carolina, United States, at the age of 86, and was buried in Chestnut Ridge United Methodist Church Cemetery, Efland, Orange, North Carolina, United States.