World War One (WWI) Selective Service System Draft Registration RecordsIn 1917 and 1918 approximately 24 million men registered for the draft in the United States. These included men born from September 11, 1872 to September 12, 1900. The World War I Draft Registration Cards created at this time have been digitized and put online. Be aware that these are records of people who registered for the draft. Everyone who registered did not actually serve in the military during World War One.
Online Indexes and RecordsAncestry and FamilySearch have online World War One draft registration cards databases...
United States World War I Draft Registration Cards, 1917-1918 (at FamilySearch -- free)
Includes a name index and digital images of the draft cards.
World War One Draft Registration Cards Index and Digital Images (at Ancestry -- requires payment)
Available for all states, plus the District of Columbia and Puerto Rico.
These records were digitized from: World War I Selective Service System Draft Registration Cards, 1917-1918 (National Archives Microfilm Publication M1509; Imaged from Family History Library microfilm).
More Online Military IndexesSee: Online Military Indexes and Records
Blank WWI Draft CardsBlank World War I Draft Cards (PDF) free to download; scroll down to "military forms" when you get there
Some Additional Online IndexesWorld War 1 Civilian Draft Registrations (partial index) (the Ray Banks database)
About 15% of US counties are included here with nearly 1.2 million names (of the 24 million total).
Colorado WWI Draft Registration Cards Indexes
Kansas WWI Draft Cards Index available for 13 counties
Maine World War I Draft Registration Index, 1917-1919
Nebraska WWI Draft Registration Cards Database, 1917-1918
Virginia: World War I Draft Registrations for Northern Virginia
How to Order Copies by MailThe Southeast Regional Branch of the National Archives in Morrow, Georgia (near Atlanta) has the original World War One draft cards. You can request a copy of these cards by mail for a fee. See The National Archives Southeast Region, Atlanta for contact information.
DisclaimerThese are merely suggestions to help you find a copy of a person's WWI draft card. You may not be able to find a specific person's card for a variety of reasons. See additional disclaimers at the link below.