Prior to the Air Mail Act, which organization was primarily responsible for mail carrying in aviation?

Before the Air Mail Act was established, the primary responsibility for carrying mail through aviation fell to the US Army. This involvement came about during World War I, when the Army recognized the potential for aircraft to transport mail efficiently across long distances. The Army's role was significant in shaping early airmail operations, as they already had the necessary resources and infrastructure to handle such tasks.

The Air Mail Act of 1925 marked a turning point, as it allowed private companies to engage in airmail services, but prior to this, military aviation was the backbone of early mail transportation by air. Consequently, the organization's early involvement laid the groundwork for the development of commercial airmail services in the years that followed.