SEC Connections To Ivy League
You do yourselves a disservice a bit by starting "SEC vs. Ivy" in 1933. The Ivy League, as you note, did not exist then. So, why not go back to the beginning, i.e., before the SEC was formed, as well?
You'll find, for starters, that the picture of Alabama 1922 that mentions an upset 9-7 win over Penn State may be mislabeled: it was Penn.
Also, you'll find that one of the great early intersectional annual rivalry games -- maybe the first ever, predating even USC-Notre Dame -- was Georgia vs. Yale. Yale dominated the early years of the series, but eventually Georgia caught up. Georgia took its team name, "Bulldogs," in honor of Yale, and opened its stadium against Yale in 1929 (Yale was invited back for a 50th anniversary game in 1979, but declined).
Tennessee also borrowed Yale's famous fight song, "Down the Field," which it continues to use today.