Janey, do you own that book?
I bought an electronic version of the book by Carter Bays, and was disappointment in that it's only got a handful of pages to cover machines and Manufacturers during the 1890-1940 era. It has a lot on earlier machines, and decent size section on toys.
Since my collection is mostly 1890-1930 group, I'd love to get a reference book that has more information on that age group. But I'm leery of buying one unless I know it's going to have some solid info about the machines I'm interested in. They are not cheap books!