I hope to know who first used the name "Hawaiian Earrings."
Barratt, Milnor(1962) says "This example was suggested by Steenrod" in its Introduction:
And this is Steenrod(1949):
But these two articles don't use the term "Hawaiian Earrings."
I posted this question at Reddit and got a recommendation for this forum.
Also kindly proposed was Kaminker, Schochet(1977):
Any additional suggestions will be appreciated.