The World's First Easter Seal was issued in 1934 in Elyria Ohio. The National TB Association, who issued Christmas Seals since 1907, was keeping a close eye on their new competitor. Other countries, including our neighbor to the north, picked up on the Easter seal idea for "crippled children".
"Cleveland Plain Dealer cartoonist J.H. Donahey designed the first (Easter) seal. Donahey based the design on a concept of simplicity because those served by the charity asked "simply for the right to live a normal life." "
https://www.easterseals.com/about-us/history/