Question: Who was responsible for a commemorative half dollar struck by the Philadelphia Mint in 1936?

full_context: Document 1: Half-cent coin (Netherlands): The half-cent coin was a Dutch coin used from 1818 to 1940. It was the smallest-denomination coin of the decimal Dutch guilder until its withdrawal from circulation after the German occupation of the Netherlands in 1940. It was nicknamed "Halfje", similar to the Kwartje (the suffix "-je" is a diminutive in the Dutch language, similar to the English "-ie").
Document 2: Maine Centennial half dollar: The Maine Centennial half dollar is a commemorative coin struck in 1920 by the United States Bureau of the Mint. It was sculpted by Anthony de Francisci, following sketches by an unknown artist from the U.S. state of Maine.
Document 3: Vermont Sesquicentennial half dollar: The Vermont Sesquicentennial half dollar, sometimes called the Bennington–Vermont half dollar or the Battle of Bennington Sesquicentennial half dollar, is a commemorative fifty-cent piece struck by the United States Bureau of the Mint in 1927. The coin was designed by Charles Keck, and on its obverse depicts early Vermont leader Ira Allen, brother of Ethan Allen.
Document 4: Connecticut Tercentenary half dollar: The Connecticut Tercentenary half dollar, sometimes called the Connecticut half dollar, is a commemorative fifty-cent piece struck by the United States Bureau of the Mint in 1935. The coin was designed by Henry Kreis, and commemorates the 300th anniversary of the founding of Connecticut. Its obverse depicts the Charter Oak, where according to legend, Connecticut's charter was hidden to save it from the English; an eagle appears on the coin's reverse side.
Document 5: United States Sesquicentennial coinage: The United States Sesquicentennial coin issue consisted of a commemorative half dollar and quarter eagle (gold $2.50 piece) struck in 1926 at the Philadelphia Mint for the 150th anniversary of American independence. The obverse of the half dollar features portraits of the first president, George Washington, and the president in 1926, Calvin Coolidge, making it the only American coin to depict a president in his lifetime.
Document 6: Public Square, Cleveland: Public Square is the four-block central plaza of downtown Cleveland, Ohio. Based on an 18th-century New England model, it was part of the original 1796 town plat overseen by Moses Cleaveland, and remains today as an integral part of the city's center. The 10 acre square is centered on the former intersection of Superior Avenue and Ontario Street. Cleveland's three tallest buildings, Key Tower, 200 Public Square and the Terminal Tower, face the square. Other Public Square landmarks include the 1855 Old Stone Church and the former Higbee's department store made famous in the 1983 film "A Christmas Story", which reopened as the Horseshoe Casino Cleveland on May 14, 2012. The square was redeveloped in 2016 by the city into a more pedestrian-friendly environment with green space on the north half of the square, a hard surface on the south half of the square, and transit/bike lanes on a newly constructed Superior Avenue (which is open only to bus traffic).
Document 7: Cleveland Centennial half dollar: The Cleveland Centennial half dollar is a commemorative United States half dollar struck at the Philadelphia Mint in 1936 and 1937, though all bear the earlier date. Sometimes known as the Cleveland Centennial Great Lakes Exposition half dollar, it was issued to mark the 100th anniversary of Cleveland, Ohio, as an incorporated city, and in commemoration of the Great Lakes Exposition, held in Cleveland in 1936.
Document 8: Hudson Sesquicentennial half dollar: The Hudson, New York, Sesquicentennial half dollar, sometimes called the Hudson Sesquicentennial half dollar, is a commemorative fifty-cent piece struck by the United States Bureau of the Mint in 1935. The coin was designed by Chester Beach. Its obverse depicts "Half Moon", flagship of Henry Hudson, after whom the city of Hudson is named.
Document 9: Thomas G. Melish: Thomas Gatch Melish (October 28, 1876 – February 15, 1948) was a Cincinnati entrepreneur and coin collector. In the 1930s, Melish was responsible for two United States commemorative coin issues, the Cincinnati Musical Center half dollar and the Cleveland Centennial half dollar.
Document 10: Lexington-Concord Sesquicentennial half dollar: The Lexington-Concord Sesquicentennial half dollar, sometimes the Lexington-Concord half dollar or Patriot half dollar, is a commemorative fifty-cent piece struck by the United States Bureau of the Mint in 1925 in honor of the 150th anniversary of the Battles of Lexington and Concord. It was designed by Chester Beach.
Document 11: United States Bicentennial coinage: The United States Bicentennial coinage was a set of circulating commemorative coins, consisting of a quarter, half dollar and dollar struck by the United States Mint in 1975 and 1976. Regardless of when struck, each coin bears the double date 1776–1976 on the normal obverses for the Washington quarter, Kennedy half dollar and Eisenhower dollar. No coins dated 1975 of any of the three denominations were minted.
Document 12: Hawaii Sesquicentennial half dollar: The Hawaii Sesquicentennial half dollar was struck in 1928 by the United States Bureau of the Mint in honor of the 150th anniversary of Captain James Cook's landing in Hawaii, the first European to reach there. The coin depicts Captain Cook on the obverse and a Hawaiian chieftain on the reverse. Only 10,000 were struck for the public, making it rare and valuable.
Document 13: McKinley Birthplace Memorial dollar: The McKinley Birthplace Memorial dollar was a commemorative coin struck in gold by the United States Bureau of the Mint in 1916 and 1917, depicting the 25th President of the United States, William McKinley. The coin's obverse was designed by Mint Chief Engraver Charles E. Barber, and the reverse by his assistant, George T. Morgan. As McKinley had appeared on a version of the 1903-dated Louisiana Purchase Exposition dollar, the 1916 release made him the first person to appear on two issues of U.S. coins.
Document 14: Cincinnati Musical Center half dollar: The Cincinnati Musical Center half dollar or Cincinnati Music Center half dollar is a commemorative 50-cent piece struck by the United States Bureau of the Mint in 1936. Produced with the stated purpose of commemorating the fiftieth anniversary of Cincinnati, Ohio as a center of music, it was conceived by Thomas G. Melish, a coin enthusiast who controlled the group which was allowed to buy the entire issue from the government, and who resold the pieces at high prices.
Document 15: Rhode Island Tercentenary half dollar: The Rhode Island Tercentenary half dollar, sometimes called the Providence, Rhode Island Tercentenary half dollar is a commemorative fifty-cent piece struck by the United States Bureau of the Mint in 1936. The coin was designed by John Howard Benson and Arthur Graham Carey. Its obverse depicts Roger Williams, founder of Rhode Island. Although intended to honor the 300th anniversary of the state capital, Providence, no mention of the city appears on the coin.
ground_truth: Melish was responsible for two United States commemorative coin issues, the Cincinnati Musical Center half dollar and the Cleveland Centennial half dollar.