Years flown: 1908-1912

Presidents: Theodore Roosevelt (1901-1909), William Howard Taft (1909-1913)

State added: Oklahoma

By 1908 the United States encompassed states from the Atlantic Ocean to the Pacific Ocean. When Oklahoma joined the United States the US flag added the 46th star. It flew for four years. This is the flag that was flying in 1910 when the Boy Scouts of America had its beginning.

References:

https://en.wikipedia.org/wiki/Flag_of_the_United_States

https://www.whitehouse.gov/about-the-white-house/presidents/