The General Land Office was an independent agency of the United States government responsible for public domain lands in the United States. It was created in 1812, and it merged with the United States Grazing Service in 1946 to become the Bureau of Land Management. The official in charge of the agency was called the Commissioner of the General Land Office, appointed by the President and confirmed by the Senate.
- White, C. Albert; Bureau of Land Management. A history of the rectangular survey system. Government Printing Office. p. 194.
- Williamson, James A.; Donaldson, Thomas (1880). The Public Domain. Its History, with Statistics. Government Printing Office. p. 166.
- Lanman, Charles (1887). Biographical annals of the civil government of the United States. New York: J M Morrison. p. lxxxii.
- Johnson became first director of the Bureau of Land Management in 1946