The Lowell Historical Society has the George H. Russell Collection of panoramic photographs as part of their collection. George Russell was a commercial photographer in Lowell from 1914 til his death in 1944. His family kindly donated photographs that had a Lowell connection to the Lowell Historical Society in the 1990s.
Here is the 76th Division before leaving for overseas June 19, 1918. Enlarge Photo Here
These images have been digitized by Digital Commonwealth and the Boston Public Library. They are available online at the Center for Lowell History.
See the entire collection here
Full disclosure: I am a board member of the Lowell Historical Society. Consider joining!!