1840s

George and Rachel Scott emigrated to Cincinnati from Staffordshire England where both of their families had a long association with ironstone potteries.  Their factory was a converted tavern and sat on the land now occupied by the Cincinnati ball park.  The pottery was very successful making much undecorated white ware and some decorated with the Tea Leaf motif.  George Scott was a very successful potter and his products were widely distributed.  After his death, his daughter, Sarah, inherited the business and ran it with her husband who was also a potter by trade.

1839-1864
See also: Clementson Bros.
Many of the body styles potted by J. Clementson were continued by Clementson Bros.

Edward Walley - 1845-1858
Also: Edward Walley & Son - 1858-1862

Patton & Co.

Thomas, John and Joseph Mayer
1842-1855

1845-1870
Also Jacob Furnival & Co.

Alt Name: James Edwards & Son(s)
James Edwards 1842-1854
James Edards & Son(s) 1854-1883

Henry & William Davenport - 1835-1869
William & Davenport & Co - 1869-1881
Henry Davenport Ltd. - 1881-1897

The Cochran pottery of Glasgow, Scotland, utilized the same Pre-Tea Leaf design made famous by Edward Walley.  Whether there was any connection between the Cochran and Walley potteries is not known.  The long-lived Cochran pottery was in business from 1846 to 1918 while the Walley pottery was in production for only a few short years from 1845 to 1856. 
 
Alt Name: R Cochran & Co.

Alternate Names:  WIlliam Adams, William and Thormas Adams, W Adams and Co,. WIlliam Adams and Sons.
In business from 1829-1865