Tim,
Thanks for posting pictures and commentary.
More leaf pictures may dispel any doubts or confusion. The tree seems to have the correct leaves, but the pictures are not completely clear. The single leaf doesn't seem to have enough distinguishing traits for Hardy Chicago.
Here are a few leaf pictures for 4 different trees at different stages of growth. Tree #1 (pictures 1 and 2) is the oldest (2nd year) and has a few dozen figs at the stagnant stage. Trees #2 and #3 (2nd year) are re-growing from roots due to winter die-back, #4 is 6 months old, and newly introduced to full sunlight. Hope this helps.