Millard Fillmore- January 7
Richard M. Nixon- January 9
William McKinley- January 29
Franklin D. Roosevelt- January 30
Ronald Reagan- February 6
William Henry Harrison- February 9
Abraham Lincoln- February 12
George Washington- February 22
Andrew Jackson- March 15
James Madison- March 16
Grover Cleveland- March 18
John Tyler- March 29
Thomas Jefferson- April 13
James Buchanan- April 23
Ulysses S. Grant- April 27
James Monroe- April 28
Harry S Truman- May 8
John F. Kennedy- May 29
George H.W. Bush- June 12
Donald Trump- June 14
Calvin Coolidge- July 4
George W. Bush- July 6
John Quincy Adams- July 11
Gerald R. Ford- July 14
Barack Obama- August 4
Herbert Hoover- August 10
Bill Clinton- August 19
Benjamin Harrison- August 20
Lyndon B. Johnson- August 27
William Howard Taft- September 15
Jimmy Carter- October 1
Rutherford B. Hayes- October 4
Chester A. Arthur- October 5
Dwight D. Eisenhower- October 14
Theodore Roosevelt- October 27
John Adams- October 30
James K. Polk- November 2
Warren G. Harding- November 2
James Garfield- November 19
Joe Biden- November 20
Franklin Pierce- November 23
Zachary Taylor- November 24
Martin Van Buren- December 5
Woodrow Wilson- December 28
Andrew Johnson- December 29
23 presidents left
Also, I noticed that there were presidents born on March 15th, 16th and 18th, but none were born on Saint Patrick's Day (the 17th), and James K. Polk and Warren G. Harding were the only presidents to have the same birthday (November 2nd). There were no presidents born on the 3rd, 17th, 21st, 25th, 26th, or 31st day of a month. There was one president born on the 1st, two born on the 2nd, and three born on the 4th (no presidents were born on the 3rd). Four presidents were born in January, four were born in February, four were born in March, four were born in April, two were born in May, two were born in June, four were born in July, five were born in August, one was born in September, six were born in October, six were born in November, and three were born in December. James K. Polk and Zachary Taylor are the only sequential presidents (11th and 12th) to be born in the same month (November). Franklin Pierce and James Buchanan are the only sequential presidents (14th and 15th) to be born on the same day of the month (November 23rd and April 23rd)