paragraph_text: Charles Jacobus (May 1, 1840 – November 24, 1922) was an American roque player who competed in the 1904 Summer Olympics in St. Louis. In 1904 he won the gold medal in the Olympic roque tournament.

paragraph_text: The North Branch of the Contoocook River is a river located in southwestern New Hampshire in the United States. It is a tributary of the Contoocook River, part of the Merrimack River watershed.

paragraph_text: The South Branch of the Souhegan River is a river located in northern Massachusetts and southern New Hampshire in the United States. It is a tributary of the Souhegan River, which flows to the Merrimack River and ultimately to the Gulf of Maine.

paragraph_text: Athletes with disabilities did compete in the Olympic Games prior to the advent of the Paralympics. The first athlete to do so was German American gymnast George Eyser in 1904, who had one artificial leg. Hungarian Karoly Takacs competed in shooting events in both the 1948 and 1952 Summer Olympics. He was a right-arm amputee and could shoot left-handed. Another disabled athlete to appear in the Olympics prior to the Paralympic Games was Lis Hartel, a Danish equestrian athlete who had contracted polio in 1943 and won a silver medal in the dressage event.The first organized athletic day for disabled athletes that coincided with the Olympic Games took place on the day of the opening of the 1948 Summer Olympics in London, United Kingdom. Jewish-German born Dr. Ludwig Guttmann of Stoke Mandeville Hospital, who had been helped to flee Nazi Germany by the Council for Assisting Refugee Academics (CARA) in 1939, hosted a sports competition for British World War II veteran patients with spinal cord injuries. The first games were called the 1948 International Wheelchair Games, and were intended to coincide with the 1948 Olympics. Dr. Guttman's aim was to create an elite sports competition for people with disabilities that would be equivalent to the Olympic Games. The games were held again at the same location in 1952, and Dutch and Israeli veterans took part alongside the British, making it the first international competition of its own kind. These early competitions, also known as the Stoke Mandeville Games, have been described as the precursors of the Paralympic Games.

paragraph_text: The West Branch of the Warner River is a river located in central New Hampshire in the United States. It is a tributary of the Warner River, part of the Contoocook River (and ultimately Merrimack River) watershed.

paragraph_text: The Fowler River is a river located in central New Hampshire in the United States. It is an inflow to Newfound Lake, part of the Pemigewasset River and therefore Merrimack River watersheds. Below Bog Brook, the Fowler River is subject to the New Hampshire Comprehensive Shoreland Protection Act.

paragraph_text: The Meramec River (/ ˈmɛrɪmæk /) is one of the longest free - flowing waterways in Missouri, draining 3,980 square miles (10,300 km) while wandering 218 miles (351 km) from headwaters near Salem to where it empties into the Mississippi River near St. Louis at Arnold and Oakville. The Meramec watershed covers six Missouri Ozark Highland counties -- Dent, Phelps, Crawford, Franklin, Jefferson, and St. Louis -- and portions of eight others -- Maries, Gasconade, Iron, Washington, Reynolds, St. Francois, Ste. Genevieve, and Texas. Between its source and its mouth, it falls 1,025 feet (312 m). Year - round navigability begins above Maramec Spring, just south of St. James. The Meramec's size increases at the confluence of the Dry Fork, and its navigability continues until the river enters the Mississippi at Arnold, Missouri.

paragraph_text: John Alexander Duha (February 16, 1875 – January 21, 1940) was an American gymnast and track and field athlete who competed in the 1904 Summer Olympics.

paragraph_text: Kenneth Leon "Tug" Wilson (March 27, 1896 – February 2, 1979) was an American track and field athlete and amateur athletics administrator. He competed in the 1920 Summer Olympics, finishing tenth in the discus throw competition. Wilson served as the second commissioner of the Big Ten Conference, from 1945 to 1961, and as the president of the United States Olympic Committee from 1953 to 1965.

paragraph_text: Amesbury is a city in Essex County, Massachusetts, located on the left bank of the Merrimack River near its mouth, upstream from Salisbury and across the river from Newburyport and West Newbury. The population was 16,283 at the 2010 census. A former farming and mill town, Amesbury is today largely residential. It is one of the two northernmost towns in Massachusetts (the other being neighboring Salisbury).

paragraph_text: Anton Heida (born 24 December 1878 in Prague, Czechoslovakia; date of death unknown) was an American gymnast who competed in the 1904 Summer Olympics. He is most notable for winning five gold medals at a single Olympics. He won the vault, horizontal bar, pommel horse, team competition and all-around titles, becoming the most successful athlete at the 1904 Olympics.

paragraph_text: Frederick Winters was an American weightlifter and Olympic medalist. He received a silver medal at the 1904 Summer Olympics in St. Louis.

paragraph_text: St. Louis (/ seɪnt ˈluːɪs /) is an independent city and major U.S. port in the state of Missouri, built along the western bank of the Mississippi River, on the border with Illinois. The city had an estimated 2016 population of 311,404, and is the cultural and economic center of the Greater St. Louis area (home to 2,916,447 people), making it the largest metropolitan area in Missouri and the 19th - largest in the United States.

paragraph_text: Henry Alexander Brawley (December 29, 1880 – March 1963) was an American track and field athlete who competed in the 1904 Summer Olympics.

paragraph_text: Louis Grenville "Lou" Abell (July 21, 1884 – October 25, 1962) was an American rower who competed in the 1900 Summer Olympics and in the 1904 Summer Olympics. He was born in Elizabeth, New Jersey, which was also the location of his death.

paragraph_text: Glenn Graham (January 17, 1904 – July 1986) was an American athlete who competed in the men's pole vault. He competed in Athletics at the 1924 Summer Olympics in Paris and won silver, behind fellow American pole vaulter Lee Barnes who won gold.

paragraph_text: Johannes Runge (January 24, 1878 in Braunschweig – November 12, 1949 in Bad Harzburg) was a German track and field athlete who competed in the 1904 Summer Olympics and in the 1906 Summer Olympics.

paragraph_text: He competed for the United States in the 1904 Summer Olympics held in St Louis, United States in the 800 metres where he won the silver medal and in the 1500 metres event where he finished seventh. He also competed for the New York Athletic Club team in the 4 mile team race against Chicago AA with teammates Arthur Newton, George Underwood, Paul Pilgrim and David Munson. They won the race and the gold medal.

paragraph_text: Thaddeus "Thad" Rutter Shideler (October 17, 1883 – June 22, 1966) was an American hurdler who competed in the early twentieth century. He competed in athletics at the 1904 Summer Olympics and won a silver medal in the 110 meters hurdles. Fred Schule won the gold medal.

paragraph_text: Emil Freymark (March 4, 1879 – May 26, 1936) was an American track and field athlete who competed in the 1904 Summer Olympics.

Question: Where does the Merrimack River start in the state where the host city of the 1904 Summer Olympics is located?
Answer: near Salem