I agree; the single most valuable piece of any Wikipedia article is the "external links" section. Other than that, I tend to use it to confirm my memories (in this case Warhawk is US usage for P-40s, plain Hawk is a P-36 and Kittyhawk and Tomahawk are non-US names).
Yes sorry I was slightly incorrect myself. My error was that I am thinking too British. Tomahawk was the designation given to Commonwealth nation P-40Bs and Cs. This example in the photograph is a P-40B and my head went straight into "This is a Tomahawk" mode. I forgot the US called them Warhawks from the off. I do it with T-6s too, I call them Harvards regardless of what air force they represent. Technically US T-6s should be Texans or SNJs.