It's by Lorado Taft. Taft was a turn-of-the-century Illinois sculptor whose work I have always liked. I'm not sure what you call his style. I guess it's neoclassical style, but with some romantic spirit. I first got interested in him when I was in high school, when my Urban Studies class made a field trip to his studio at the University of Chicago.
(No. He wasn't there. I'm not that old. But someone had preserved the place.)
Here's a good long shot of how the Fountain of The Great Lakes looks today:
Photo of Taft's spooky tomb:
His "Alma Mater" statue for the University of Illinois:
There's a little picture of the fountain here. Click on the little picture and you will get a big pic:
Here's a set of historical photos of the fountain:
Article about Taft:
Here's a little about the studio:
Note: I already did my rhyme du jour
So rest content with this sculptural tour.