Question: Who signed the Enforcement Act of 1871 and served as Commaning General of the US Army at the end of the American Civil War?

Context paragraphs:
Floyd Lavinius Parks: Floyd Lavinius Parks (9 February 1896 – 10 March 1959) was a United States Army general during World War II.  During the war, he was chief of staff of the US Army Ground Forces and the First Allied Airborne Army.  As such, he participated in Operation Market Garden that directed air drops into the Netherlands behind the German lines which were preventing Allied forces from crossing the Rhine river.  He commanded the US First Airborne Army in 1945 on his promotion to major general.  After the war, Parks commanded the US Sector in Berlin before going to Washington D.C. to become the chief of the Public Information Division for the Army.  Later, he commanded American forces in the US Army, Pacific in 1949.  After service in Hawaii, he became chief of the Information Department, whereafter he was known as the "father of modern Army public affairs."  He received a promotion to lieutenant general in 1953 and thereafter served as Commanding General for the Second United States Army until his retirement in 1956.

John Clem: John Lincoln Clem (August 13, 1851 – May 13, 1937) was a United States Army general who served as a drummer boy in the Union Army in the American Civil War.  He gained fame for his bravery on the battlefield, becoming the youngest noncommissioned officer in Army history.  He retired from the U.S. Army in 1915, having attained the rank of brigadier general in the Quartermaster Corps; he was the last veteran of the American Civil War still on duty in the U.S. Armed Forces.  By special act of Congress on August 29, 1916, he was promoted to major general one year after his retirement.

Ulysses S. Grant: Ulysses S. Grant, born Hiram Ulysses Grant , (April 27, 1822 – July 23, 1885) was the Commanding General of the United States Army at the end of the American Civil War and later the 18th President of the United States from 1869 to 1877.  As Commanding General, Grant worked closely with President Abraham Lincoln to lead the Union Army to victory over the Confederacy in the Civil War.  Supported by Congress, Grant implemented Reconstruction, often at odds with President Andrew Johnson.  Twice elected president, Grant led the Republicans in their effort to remove the vestiges of Confederate nationalism and slavery, protect African-American citizenship, and support economic prosperity.  Although his presidency has often been criticized for multiple administration scandals and for his failure to alleviate the economic depression following the Panic of 1873, he is regarded as a President who performed relatively well in the context of his time and pursued justice for all.

Robert S. Williamson: Robert Stockton Williamson (January 21, 1825 – November 10, 1882) was an American soldier and engineer, noted for conducting surveys for the transcontinental railroad in California and Oregon.  Inducted into the Army Corps of Engineers in 1861, he had a distinguished record serving in the American Civil War, winning two brevet promotions.  When the US Army Corps of Engineers established its San Francisco District office in 1866, He was appointed as the first commander of the office.  Formally promoted to the rank of Lieutenant Colonel in 1869, he retired in 1871, because of health problems, and died in San Francisco in 1882.

William Henry Wallace: William Henry Wallace (March 24, 1827 – March 21, 1901) was a Confederate States Army brigadier general during the American Civil War (Civil War).  Before the Civil War, he was a planter, newspaper publisher, lawyer and South Carolina legislator in 1860 who supported the state calling a secession convention.  He served in the Eastern Theater of the American Civil War, including service as a brigade commander in the Army of Northern Virginia.  After the Civil War, he was a lawyer, planter, South Carolina legislator and circuit judge.

Enrollment Act: The Enrollment Act, 12 Stat.  731 , enacted March 3, 1863, also known as the Civil War Military Draft Act, was a legislation passed by the United States Congress during the American Civil War to provide fresh manpower for the Union Army.  A form of conscription, the controversial act required the enrollment of every male citizen and those immigrants who had filed for citizenship between ages twenty and forty-five.  Federal agents established a quota of new troops due from each congressional district.  In some cities, particularly New York City, enforcement of the act sparked civil unrest as the war dragged on, leading to the New York City draft riots on July 13–16.  It replaced the previous Militia Act of 1862.

Second Enforcement Act of 1871: The Enforcement Act of 1871 (17 Stat.  13 ), also known as the Civil Rights Act of 1871, Force Act of 1871, Ku Klux Klan Act, Third Enforcement Act, or Third Ku Klux Klan Act, is an Act of the United States Congress which empowered the President to suspend the writ of habeas corpus to combat the Ku Klux Klan (KKK) and other white supremacy organizations.  The act was passed by the 42nd United States Congress and signed into law by President Ulysses S. Grant on April 20, 1871.  The act was the last of three Enforcement Acts passed by the United States Congress from 1870 to 1871 during the Reconstruction Era to combat attacks upon the suffrage rights of African Americans.  The statute has been subject to only minor changes since then, but has been the subject of voluminous interpretation by courts.

Diego Archuleta: Brigadier General Diego Archuleta (March 27, 1814 – 1884), was a member of the Mexican Congress.  He joined the Mexican Army to fight against the United States in the Mexican American War.  Later, he was appointed an Indian (Native Americans) Agent by President Abraham Lincoln, and joined the Union Army (US Army) during the American Civil War.  Archuleta became the first Hispanic to reach the military rank of Brigadier General.

Kenneth Bowra: Kenneth Bowra is a retired major general who served in the US Army from 1970 to 2003.  Bowra saw service with US special forces in the Vietnam War and Cambodian Civil War and has worked with the Central Intelligence Agency and Joint Special Operations Command.  He later fought in the US Invasion of Grenada and in the Somali Civil War and First Gulf War.  In 1998 he was given command of the John F. Kennedy Special Warfare Center and School and in 2000 was deputy commander of NATO's Kosovo Force.  Retiring in 2003 he is now a diplomat with the US State Department in Saudi Arabia.

King Fahd International Airport: King Fahd International Airport (KFIA) (Arabic: مطار الملك فهد الدولي‎ ‎ ) (IATA: DMM, ICAO: OEDF) is an airport in Dammam, Saudi Arabia 20 km northwest of Dammam, Saudi Arabia.  The airport's basic infrastructure was complete by the end of 1990, which allowed the Allied forces engaged in the first Gulf War in early 1991 to use the field for the storage of military aircraft.  KFIA was the base used by all USAF A-10s (144), as well as the US Army's 101st Airborne's AH-64, CH-47, UH-60, and OH-58 helicopters during the Gulf War.  It was much more than a storage area.  The US Army had many units there before the start of the war, as well as during redeployment from Iraq after.  The General Authority of Civil Aviation of Saudi Arabia finally opened the new Dammam King Fahd International Airport on 28 November 1999 to commercial traffic, and all airlines transferred their operations from Dhahran International Airport, which had been in use until then.  The new Dammam airport serves most of Eastern Region of Saudi Arabia and in particular the growing urban complex made up of Dammam, Dhahran, Khobar, Qatif, Ras Tanura, while its catchment area also covers Jubail with total population of about 2.5 million served.  The airport is the third major hub for Saudia, and furthermore was a hub for the now defunct Sama Airlines.

Supporting paragraphs: Second Enforcement Act of 1871 Ulysses S. Grant
Answer: Ulysses S. Grant