NOTE: Roger Haworth: introduced by Brilliant in 1888. That factory moved and morphed into Greensburg. When that company had financial problems, they sold equipment and moulds to Huntington. From there, at least some of the moulds went to Royal, who made compotes, sauce dishes, and a plate in chocolate glass around 1901 -- unknown whether they made any of the rest of the line in clear. The Welkers put it at McKee because of the chocolate production but we now know that was done at Royal, so we can probably cross them off the list. Items show up in Butler Brothers assortments as late as 1915, apparently from old moulds that went through National's system somewhere along the line.
NOTE: Sid Lethbridge: The c1901 National catalog shows the table set, open and covered comports and berry bowls