It's a good recap of Lockheed derivatives of the Model 10 but there are a couple of nitpicky errors. Merrill and Lambie made their Atlantic round trip before, not after, Earhart disappeared and Chamberlain came back from Munich in a Model 14, not a Model 10.
There was no bomber version of the original Electra but Lockheed proposed a Model 10D "heavy fighter" version that was never built.
The article's account of story of the Model 10 design evolved is a brief overview. The full story is much more complicated and interesting. I wrote about it in what I originally intended to be the first chapter of the Electra book. I've attached a copy for anyone who's interested.