A-OKAY! Here's a photo from a book on my shelf -- someone should build this beast!:

"1897 Tally-Ho Tandem, Maumee Cycle Co., Toledo, Ohio: The tandem conundrum- that the gentleman should ride behind his fair maiden- led to a number of adjustments, such as a 30-inch wheel on the rear and a 'donkey-back' for sight lines over the coiffeur of his lady. The real problem, of course, was the steering. Like many other tandems, the Tally-Ho addressed it with steel rods from a shaft connecting the rear handlebars to the front fork. The device was marginally successful, though it did represent the first clear battle of wills between many a courting couple."

source: "The American Bicycle," Pridmore and Herd, Motorbooks International, 1995.

... I bet you could also ride it solo from the rear seat and bust some mad wheelies!!!