Castle opened his own competing business, and in 1899, the C. L. Castle factory was up and running, initially employing just two people.
|1880||Census shows Charles L. Castle as a Billiard Table Maker|
|1890||After years listed as a carpenter or mechanic, C. L. Castle now works as a book-keeper at the same address as Benedict and Brunswick|
|1893||C. L. Castle works as a commercial traveler (traveling salesman) at the same address as Benedict and Brunswick|
|1899||New York State factory inspection shows C. L. Castle manufacturing billiard tables with two workman, 60 hrs/week|
|1917||C. L. Castle's business closes after he experiences a serious hip injury|