Green Whiddon Duggan was born August 1862 at Washington County, Georgia to John Corlie Duggan and Francis E. Gheesling. Green married Ella L. Dunham at Washington County on 20 November 1892, but I haven't found any children attributed to them.
Green was usually occupied as a farmer. In the early months of 1921, he contracted Typhoid Fever and was dead before Spring.
Macon Telegraph (Georgia)
Friday, 18 March 1921 - pg. 11 [via GenealogyBank]
GREENE W. DUGGAN
Greene W. Duggan of Washington county died at his home near Warthen, Ga., after a brief illness of typhoid fever. He was 58 years of age.
Besides his wife, he is survived by one brother, J. C. Duggan of Warthen, and three sisters, Mrs. J. E. Fulghum of Macon, Mrs. E. J. Forrester, and Miss Alice Duggan of Sparta.
Mr. Duggan was one of Washington county's most prominent citizens. The funeral will take place Friday morning from the Baptist church at Warthen, of which he was a deacon.
He Trusted In Christ, Therefore We Are Assured Of His Salvation.