From Guns.com:

Introduced into the 73rd Congress on May 28, 1934, as H.R. 9741 by U.S. Rep. Robert “Bob” Doughton, a North Carolina Democrat, the legislation sailed through Capitol Hill in less than a month. For historical perspective, the country was amid the Great Depression and lawmakers in the same Democrat-controlled Congress also sped the Securities Act, which established the Securities and Exchange Commission, and the National Industrial Recovery Act, which established the Public Works Administration, to the waiting hands of President Franklin Roosevelt for signature. The measure passed both chambers on a voice vote, with no record of which lawmakers approved it.