Eleven years ago, I looked up the history of freight car trucks (before WW1) in the Car Builder's (or Builders') Dictionary series. Here are some of the images. Since they are free download versions, the quality is poor. I hope these are useful to you. 1274
MR Prototype forum3rd edition: 1895 (my blog post)
4th edithon: 1903 (my blog post)
5th edition: 1905 (my blog post)
7th edition: 1912 (my blog post)
The 1903 one is similar to what IC Casey Jones (4-6-0) tender was equipped with. (See page 109 of the Model Railroader Cyclopedia Vol.1 Steam Locomotives)