Upon reading this thread yesterday, I did an Internet search and came across the Wikipedia article. The article implies that Super Power Steam locomotives were built by Lima. However, the end of the article states that Alco and Baldwin were inspired by Lima’s success and built similar locomotives, but does not state if those locomotives were also considered “Super Steam Power.”

Were, for example, Northern Pacific’s A class Northerns built by Alco and Baldwin also considered “Super Steam Power?”