ferry's with paddle power

[towboatjoe]

I found the link to the horse powered ferry with the turntable.
Here it is http://nasw.org/users/sperkins/hrsferry.html

I also found another link where a guy built a auto ferry. The boat looks like a sternwheel houseboat powered by a Farmall tractor motor.
Check this out  http://davecathell.tripod.com/mb.html