General United States History in 1948

The United States and South America: The Northern Republics by Whitaker, Arthur P.

Men, Cities and Transportation: A Study in New England History, 1820-1900, Volume I by Kirkland, Edward Chase

Men, Cities and Transportation: A Study in New England History, 1820-1900, Volume II by Kirkland, Edward Chase

Hawaii: A Century of Economic Change, 1778-1876 by Morgan, Theodore

The United States and Britain: Revised Edition by Brinton, Crane

Abbott Lawrence Lowell, 1856-1943 by Yeomans, Henry Aaron

The Young Henry Adams by Samuels, Ernest

The United States and Russia by Dean, Vera Micheles