From the online genealogy Griffith-Dubois Family Memories http://www.genealogy.rdgriffith.com/famtree/ghtout/np3.htm:
'Stephen served in the Revolutionary War as a private. He enlisted at Mar's Bluff on the Big Pee Dee River and served three months under Col. John Baxter in the infantry and sixteen months under Capt. John Cotrarie and Col. Daniel Horry in the cavalry. He was captured by the Tories during 1780 but escaped. He then served twenty-one months under Marion. He was in the Battle of Stono Ferry near Charleston, the siege of Savannah, the engagement with Tories under Col. Barfield, the Battle of Black Mingo, and aided in the capture of the Tory Colonel Tyne. He was present when General (Count Casimir) Pulaski headed the light horse cavalry which charged the breastworks of the British during the Battle of Savannah, and when General Pulaski received the mortal cannon shot in his thigh.
Stephen Duboise applied for his pension on 1832-8-24, which was issued in 1833 and sent to Murfreesboro, Rutherford Co, TN. After his death, the arrears in pension due at date of death were paid to James H Kendrick, Nashville, TN, the attorney for his widow. Her name remains unknown.'
In his book "Revolutionary Way Pension Appications from Franklin County, Tennessee," author Charles Sherrill mentions Stephen Duboise. [paraphrased here]
Alexander Grant S3407, W. TN #19486, $80/year, issued 1833-9-13. Alexander Grant listed Stepen Duboise in his pension appication, as proof of his service. Grant was from Maryland originally but had served from the Camden District, SC, and in almost all the battles in the Carolinas 1776-1781. He moved to Warren Co, TN, about 1814 and made his pension application there in 1832. Stephen Duboise swore in 1833 that he had known Grant ever since seeing him in the Battle of Stono. Grant was then binding the wounds of Col Lawrence, while Lawrence urged his men to fight on, telling them that the British were shooting at the feathers in his hat, not at them.
'Movement of county lines during this period resulted in land and census records being variously located in Bedford, Franklin and Warren counties in TN. Land grants can be found for several family members, all located within a few miles of one another.
Tennessee Land Grants:
1822 - Stephen Dubois, Bedford Co - 25 acres
1827, 1830 - Eliaza Dubois, Franklin Co - 50 acres
1836 - Elisha Dubois, Herdman Co - 65 acres
1846 - Elisha Duboyce, Herdman Co - 15 acres (2 plots)
The 1822 grant was situated on the Barren Fork of the Duck River in TN. Elias and Annerence Dubois (sic) received land grants in the same region in 1827 and 1830. Elias' four eldest children were born in Alabama. The 1820 Franklin Co, AL, state census lists a William Debuoise household comprised of multiple families. It is assumed there is a family connection with William, since Stephen and Elias had been located in Alabama, and Stephen had returned to Franklin Co, AL, by 1840. Elias named two of his sons William and Stephen, further supporting this assumption. Given their ages, it is assumed that Stephen is father to Elias and grandfather to William Duboise.'