Question: Who founded David Sprowle's military branch?

full_context: Document 1: James Ward (Medal of Honor): James Ward (born 1833, date of death unknown) was a Union Navy sailor in the American Civil War and a recipient of the U.S. military's highest decoration, the Medal of Honor, for his actions at the Battle of Mobile Bay.
Document 2: David H. Scofield: "The President of the United States of America, in the name of Congress, takes pleasure in presenting the Medal of Honor to Quartermaster Sergeant David H. Scofield, United States Army, for extraordinary heroism on 19 October 1864, while serving with Company K, 5th New York Cavalry, in action at Cedar Creek, Virginia, for capture of flag of 13th Virginia Infantry (Confederate States of America)."
Document 3: Continental Army: On June 15, 1775, the Congress elected by unanimous vote George Washington as Commander - in - Chief, who accepted and served throughout the war without any compensation except for reimbursement of expenses.
Document 4: Samuel Todd: Samuel Todd (born 1815, date of death unknown) was a Union Navy sailor in the American Civil War and a recipient of the U.S. military's highest decoration, the Medal of Honor, for his actions at the Battle of Mobile Bay.
Document 5: United States Marine Corps: The history of the Marine Corps began when two battalions of Continental Marines were formed on 10 November 1775 in Philadelphia as a service branch of infantry troops capable of fighting on both at sea and on shore. By the mid-20th century, the U.S. Marine Corps had become a major theorist of amphibious warfare, which were utilized in the Pacific theater of World War II. As of 2016, the USMC has around 182,000 active duty members and some 38,500 reserve Marines. It is the smallest U.S. military service within the DoD.
Document 6: David Sprowle: David Sprowle (born 1811) was an orderly sergeant serving in the United States Marine Corps during the American Civil War who received the Medal of Honor for his actions in the Battle of Mobile Bay.
Document 7: Richard D. Dunphy: Richard D. Dunphy (December 12, 1841 – November 23, 1904) alias Richard D. Dumphy was a Union Navy sailor in the American Civil War and a recipient of the U.S. military's highest decoration, the Medal of Honor, for his actions at the Battle of Mobile Bay.
Document 8: United States Marine Corps: After the war, the Marine Corps fell into a malaise that ended with the appointment of Archibald Henderson as its fifth Commandant in 1820. Under his tenure, the Corps took on expeditionary duties in the Caribbean, the Gulf of Mexico, Key West, West Africa, the Falkland Islands, and Sumatra. Commandant Henderson is credited with thwarting President Jackson's attempts to combine and integrate the Marine Corps with the Army. Instead, Congress passed the Act for the Better Organization of the Marine Corps in 1834, stipulating that the Corps was part of the Department of the Navy as a sister service to the Navy. This would be the first of many times that the independent existence of the Corps was challenged.
Document 9: Adam Duncan (sailor): Adam Duncan (born 1833, date of death unknown) was a Union Navy sailor in the American Civil War and a recipient of the U.S. military's highest decoration, the Medal of Honor, for his actions at the Battle of Mobile Bay.
Document 10: United States Armed Forces: The history of the U.S. Armed Forces dates to 14 June 1775, with the creation of the Continental Army, even before the Declaration of Independence marked the establishment of the United States. Continental Navy, established on 13 October 1775, and Continental Marines, established on 10 November 1775, were created in close succession afterwards by the Second Continental Congress in order to defend the new nation against the British Empire in the American Revolutionary War.
Document 11: James Seanor: James Seanor (born 1833, date of death unknown) was a Master-at-Arms in the Union Navy who served during the American Civil War and a recipient of the U.S. military's highest decoration, the Medal of Honor, for his actions at the Battle of Mobile Bay.
Document 12: James E. Sterling: James E. Sterling (born 1838, date of death unknown) was a Union Navy sailor in the American Civil War and a recipient of the U.S. military's highest decoration, the Medal of Honor, for his actions at the Battle of Mobile Bay.
Document 13: Samuel Nicholas: Samuel Nicholas (1744 – 27 August 1790) was the first officer commissioned in the United States Continental Marines (predecessor to the United States Marine Corps) and by tradition is considered to be the first Commandant of the Marine Corps.
Document 14: Jacob Zeilin: Jacob Zeilin (July 16, 1806 – November 18, 1880) was the United States Marine Corps' first non-brevet flag officer. He served as the seventh commandant of the United States Marine Corps, from 1864 to 1876.
Document 15: Jethro Sumner: Sumner was named the commanding officer of the 3rd North Carolina Regiment of the North Carolina Line, a formation of the Continental Army, in 1776, and served in both the Southern theater and Philadelphia campaign. He was one of five brigadier generals from North Carolina in the Continental Army, in which capacity he served between 1779 and 1783. He served with distinction in the battles of Stono Ferry and Eutaw Springs, but recurring bouts of poor health often forced him to play an administrative role, or to convalesce in North Carolina. Following a drastic reduction in the number of North Carolinians serving with the Continental Army, Sumner became a general in the state's militia but resigned in protest after the North Carolina Board of War awarded overall command of the militia to William Smallwood, a Continental Army general from Maryland. After the end of the war in 1783, Sumner helped to establish the North Carolina Chapter of the Society of the Cincinnati, and became its first president. He died in 1785 with extensive landholdings and 35 slaves.
ground_truth: Samuel Nicholas
sub_queries: David Sprowle >> military branch Answer: United States Marine Corps
United States Marine Corps >> founded by Answer: Samuel Nicholas