Question: Who founded the military branch that Jacob Zeilin was in?

full_context: Document 1: 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 2: 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 3: 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 4: United States military seniority: A type of ``positional seniority ''exists for military officers who hold top leadership positions of the armed forces. For instance, the Chairman of the Joint Chiefs of Staff is considered the senior most officer of the entire United States military, even though it is possible that contemporaries of the same rank may have earlier dates of rank or time in service. Likewise, heads of various armed service branches are considered senior most within their service; unified commanders are also considered senior most in their respective regions yet not necessarily to each other.
Document 5: 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 6: Camp Robert Smalls: The camp was located inside the Great Lakes Naval Training Center in Illinois and named for Robert Smalls, a black naval hero of the American Civil War. The camp's first commander was Lieutenant Commander Daniel Armstrong, whose father had founded the Hampton Institute and had "brought him up to understand race problems." The Navy began enlisting Negro seamen on June 1, 1942, and the first class of 277 enlistees began training at Camp Robert Smalls later that month. Of that class, 222 completed the training successfully on September 3, 1942. 102 of those graduates were chosen to continue with specialized training, and the rest of the class was assigned to routine duties.
Document 7: Surgeon General of the United States: In 1798, Congress established the Marine Hospital Fund, a network of hospitals that cared for sick and disabled seamen. The Marine Hospital Fund was reorganized along military lines in 1870 and became the Marine Hospital Service -- predecessor to today's United States Public Health Service. The service became a separate bureau of the Treasury Department with its own staff, administration, headquarters in Washington, D.C, and the position of Supervising Surgeon (later Surgeon General).
Document 8: Navy: The Spanish Infantería de Marina was formed in 1537, making it the oldest, current marine force in the world. The British Royal Marines combine being both a ship - based force and also being specially trained in commando - style operations and tactics, operating in some cases separately from the rest of the Royal Navy. The Royal Marines also have their own special forces unit.
Document 9: 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.
Document 10: Joseph J. McCarthy: Joseph Jeremiah McCarthy (August 10, 1911 – June 15, 1996) was a mustang officer in the United States Marine Corps Reserve, who served during World War II and the Korean War. He was also the Superintendent of Ambulances in the Chicago Fire Department,
Document 11: 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 12: Master Chief Petty Officer of the Navy: Master Chief Petty Officer of the Navy Badge of the MCPON Incumbent MCPON Steven S. Giordano since September 2, 2016 Formation April 28, 1967; 50 years ago (1967 - 04 - 28) First holder Delbert Black Website Official website
Document 13: 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 14: William J. Van Ryzin: William John Van Ryzin (April 20, 1914 – July 1, 2002) was a highly decorated officer of the United States Marine Corps with the rank of lieutenant general. He is most noted as Chief of Staff, Headquarters Marine Corps during the Vietnam War.
Document 15: Joint Chiefs of Staff: Position Photograph Name Service Chairman of the Joint Chiefs of Staff Gen. Joseph F. Dunford United States Marine Corps Vice Chairman of the Joint Chiefs of Staff Gen. Paul J. Selva United States Air Force Chief of Staff of the Army Gen. Mark A. Milley United States Army Commandant of the Marine Corps Gen. Robert B. Neller United States Marine Corps Chief of Naval Operations Adm. John M. Richardson United States Navy Chief of Staff of the Air Force Gen. David L. Goldfein United States Air Force Chief of the National Guard Bureau Gen. Joseph L. Lengyel United States Air Force
ground_truth: Samuel Nicholas
sub_queries: Jacob Zeilin >> military branch Answer: United States Marine Corps
United States Marine Corps >> founded by Answer: Samuel Nicholas