When Albert Einstein worked for the United States government, he did not receive a regular salary or income. In 1933, Einstein left Germany due to the rise of the Nazi regime and accepted a position at the Institute for Advanced Study in Princeton, New Jersey, where he continued his scientific research. During his time in the United States, he became a prominent figure in academia and made valuable contributions to the scientific community.
While Einstein did not work directly for the U.S. government, he did collaborate with government agencies and offered his expertise in matters related to science, technology, and national defense. However, he did not receive a specific salary for his services. Instead, he received a stipend from the Institute for Advanced Study, where he held a position as a professor.
It's important to note that Einstein's primary source of income and financial stability came from his academic positions, lectures, royalties from his publications, and grants or support from various organizations interested in supporting his research.