I found this record that indicates a "Francis T Coyle" from Mahanoy City, same birth date in a WW1 draft record, could use some back story if possible:
Francis T Coyle
United States World War I Draft Registration Cards
Name: Francis T Coyle
Event Type: Draft Registration
Event Date: 1917-1918
Event Place: New York City no 164, New York, United States
Gender: Male
Nationality: United States
Birth Date: 13 Jan 1897
Birthplace: Mahonoy City, Pennsylvania, United States
Affiliate Publication Number: M1509 , Affiliate Publication Title: World War I Selective Service System Draft Registration Cards , GS Film Number: 1786856 , Digital Folder Number: 005264785 , Image Number: 05076
Citing this Record
"United States World War I Draft Registration Cards, 1917-1918," database with images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/K6J8-86H : accessed 22 July 2015), Francis T Coyle, 1917-1918; citing New York City no 164, New York, United States, NARA microfilm publication M1509 (Washington D.C.: National Archives and Records Administration, n.d.); FHL microfilm 1,786,856.
Seems you're right, Jonathan, thank you for that educational tidbit: http://www.archives.gov/research/military/ww1/draft-registration/