January 1, 1855, Jonathan Miles, one of the pioneer settlers and early business men of Carrollton, platted the town of Miles Point, near the center of Section 16 within about 600 yards of the Missouri River. The plat embraced sixteen blocks of eight lots each, the blocks being two hundred feet square, with a block reserved as a public square.
It is evident that Mr. Miles had in mind the founding of this town nothing more than to provide shipping facilities by river for the thriving community in which it was located, and for a long time after its founding it enjoyed a large river trade, being known at that time and ever long after as "Shanghai." Tradition says that this name of Shanghai was given to the town by reason of the importation, at one time, of a large consignment of chickens of this breed... (--Turner, Vol. 1, p. 144.)
A Directory of Towns, Villages, and Hamlets Past and Present of Carroll County, Missouri
Compiled by Arthur Paul Moser
https://thelibrary.org/lochist/moser/carrollpl.html