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Dear Ms. Williams,
Thank you for posting your request on History Hub!
For photographs and videos of various U.S. Army activities during WWI, please see NARA’s web pages on WWI at https://www.archives.gov/topics/wwi/technology.
For additional information about the “Hello Girls” during WWI, please view the responses to a request on the same topic at https://historyhub.history.gov/message/6759.
We hope this is helpful. Best of luck with your research!