Columbia subject headings:
Harvard subject headings:
California--Politics and government--1850-1950.
Johnson, Hiram, 1866-1945.
Legislators--United States--Correspondence
Personal correspondence.
Progressivism (United States politics)
United States--Politics and government--1901-1953.
Princeton subject headings:
Johnson, Hiram, 1866-1945.
Progressivism (United States politics)
United States--Politics and government--1901-1953.