Image of Stockholders of the United Drug Company in attendance at the Ninth Annual Convention held at Boston Arena, Boston, Mass., October 3-4-5, 1911 An image taken by Elmer Chickering of the Stockholders of the United Drug Company in attendance at the Ninth Annual Convention held at Boston Arena in Boston, Massachusetts between October 3rd and 5th, 1911. 03 October 1911-05 October 1911