Born in 1943

A selection from Wikipedia's '1943 in the United States'. Not a complete list.

• January 15 – The world's largest office building, The Pentagon, headquarters of the Department of War, is dedicated in Arlington, Virginia.
• February 14 – WWII: Battle of the Kasserine Pass – German General Erwin Rommel and his Afrika Korps launch an offensive against Allied defenses in Tunisia; it is the United States' first major battle defeat of the war.
• March 31 – Rodgers and Hammerstein's Oklahoma! opens on Broadway, heralds a new era in "integrated" stage musicals, becomes an instantaneous stage classic, and goes on to be Broadway's longest-running musical up to that time (1948).
• June 6 – The first game of the All-American Girls Professional Baseball League is played, a precursor of professional women's sports in the U.S.
• July 10 – WWII: Allied invasion of Sicily – The Allied invasion of Axis-controlled Europe begins with landings on the island of Sicily off mainland Italy, by the U.S. Army 45th Infantry Division and a number of Allied paratroopers.
• August 14 – WWII: The Quadrant Conference begins in Quebec City; Canadian Prime Minister MacKenzie King meets with Winston Churchill and Franklin D. Roosevelt.
• October 12 – The American Broadcasting Company (ABC) begins radio broadcasting.
• November 20 – WWII: Battle of Tarawa – United States Marines land on Tarawa and Makin atolls in the Gilbert Islands and take heavy fire from Japanese shore guns.

Source: Wikipedia (CC BY-SA 4.0)