Here's a little topic I stumbled upon while browsing a library history blog's series of posts about the American Library Association's WWI military libraries. Found it interesting -- so I checked for any PD short work I might add to this collection and found this on Hathitrust.
Title - "Soldiers, Sailors, and Books"
Author - American Library Association, (War Service Committee)
Link to Text -
https://catalog.hathitrust.org/Record/000962199
The work ran too long for one section, so I divided it into two sections as follows:
Part 1 - (length 50:11)
https://librivox.org/uploads/maryannspiegel/wwi3_soldierssailorsbooks1_ala_mk_128kb.mp3
Part 2 - (length 42:14)
https://librivox.org/uploads/maryannspiegel/wwi3_soldierssailorsbooks2_ala_mk_128kb.mp3
Short Summary:
The American Library Association (ALA) was founded in 1876, and is the oldest and largest library association in the world. In 1917, as the U.S. mobilized for the First World War, the ALA organized its War Service Committee, with the goal of providing reading materials to the men being sent to war. This booklet details the organization's efforts to set up libraries in camps, aboard ships, in hospitals, and anywhere else the men were sent, even within the war zone itself. The booklet was published as part of a fundraiser in November 1917 for the United War Work Campaign, a joint effort by seven civilian organizations involved in service to the troops.
By the way, in case anyone is curious, these are the WWI Library blog posts which began my interest in this topic:
http://libraryhistorybuff.blogspot.com/search/label/ALA%20Library%20War%20Service