Seward's head on Lincoln's body

Today's field trip reminded me of a statue in Madison Square Park in New York City. Supposedly Randolph Rogers, the sculptor commissioned to cast Lincoln's rival William Seward in bronze, ran out of time/money/supplies and cast only Seward's head, affixing it to a "stock" body he had done of Lincoln years before. Here, the New York City Parks Department denies that.
http://nycgovparks.org/sub_your_park/historical_signs/hs_historical_sign.php?id=12752
However, if you've ever seen this statue, it does seem hilariously out of proportion. And wasn't Seward rather short and fat?