The phone number of the Drum Barracks Civil War Museum is: 310-548-7509.
The phone number of the World War Ii Flying Museum is: 619-448-4505.
The phone number of the Warren Rifles Confederate Museum is: 540-636-6982.
The phone number of the World War Ii Victory Museum is: 260-927-9144.
The area labeled number 2 on the map was acquired by the United States at the conclusion of the Mexican-American War, which lasted from 1846 to 1848. The war ended with the signing of the Treaty of Guadalupe Hidalgo, through which the U.S. gained significant territories, including modern-day California, Arizona, New Mexico, Nevada, and parts of Colorado and Utah.
I don't have an exact figure for you but I can tell you the number would be in the millions. You could contact the Army museum. They may have the exact numbers and the US Census Bureau may have the figures too. Go to the link I have provided for you below.
The phone number of the Banning Residence Museum is: 310-548-7777.
The phone number of the Old Barracks Museum is: 609-396-1776.
The phone number of the Jefferson Barracks Powder Magazine Museum is: 314-544-4154.
The phone number of the Delaware Childrens Museum is: 302-654-2340.
The phone number of the Delaware Art Museum is: 302-571-9590.
The phone number of the Bellamy Mansion Museum is: 910-251-3700.
The phone number of the Business History And Tech Museum is: 302-798-2100.
The phone number of the Latimer House Museum And Archives is: 910-763-5869.
The phone number of the Oakland Museum-California is: 510-452-1289.
The phone number of the Eastern California Museum is: 619-878-2411.
The phone number of the California Memorial Museum is: 559-292-1981.
The phone number of the Oakland Museum Of California is: 510-318-8400.