Son of Waller Ferguson and Elsie Elizabeth 'Allie' Saunders Ferguson in Indian Territory, Oklahoma. Married June 1903 Rachel Catherine Strain in Flint District, Indian Territory, Oklahoma and they had two children Robert and Idella. He married second to Chloe 'Cide May' Shahan(e) in September 1918. They had no children. John was Marshall of Stilwell and contracted with the US Government.