Murphy, Gilbert, Jack Griswold (GA/MS - c. 1905)

I am looking for the father of these three men, who were born in Georgia (Murphy & Gilbert) or Mississippi (Jack) between 1905 and 1909. Their mother, Emma (last name unknown) appears as a widow in the 1910 Turner co, GA census. The father's birthplace is given as Connecticut, which is all that is known of him. Emma remarried in 1916 to Fulton Hendrix and the boys appear as Hendrixes in the 1920 census, but are using Griswold again by 1930. Emma probably died before 1923, when Fulton remarried.