- For one short period of time there actually was a Brush-McCoy Company that was formed when George Brush became a partner with J.W.McCoy. It remained the Brush-McCoy Pottery Company until 1925. At this time the McCoys and Brush went their own ways. The Nelson McCoy Sanitary Stoneware Company and Brush Pottery became two companies.
- There is NO such thing as an authentic Brush-McCoy Cookie Jar. McCoy made cookie jars and Brush made cookie jars, but it was after the two companies went their own ways. If you see a cookie jar with Brush-McCoy as the mark, beware, it is neither and a fake.
- The first Brush cookie jar, made in 1929, is pictured in The Complete Cookie Jar Book by Mike Schneider.
- Ross and Don Winton designed many Brush cookie jars, their jars have a W in the markings.
- Brush jars have been widely reproduced and it can be hard to tell reproductions from the originals as original molds were sold and used later for reproductions.
- Brush Pottery closed its doors in 1982.