What United States Presidents were born in May?

The first 9 presidents were born before the US existed, but all were born within the American colonies which later became states within the United States. Martin Van Buren is often cited as the first US President born within the US. However, he was born in 1782 and the Revolution did not end until 1783. Thus, I assert that John Tyler, born in 1790, was the first US President born within The United States of America.