Yankee Stadium Legacy Problem

This really has nothing to do with the White Sox, but it's been on my mind while pursuing all of the Yankee Stadium Legacy cards against the White Sox.

Why are most of the Senators cards labeled Nationals?

I realize that one Senators team became the Twins and another became the Rangers, but why evoke the name of the relocated Expos? I wouldn't think that just using the name Senators would be in any violation of owners rights.

I had only seen the Nationals cards until I went looking for images to use for this post. Then I saw a card against the Senators. I was convinced that it was a rights issue, but now this makes absolutely no sense. The only thing I can think of is that the older Washington team could not be called the Senators legally. For what reason, I'm not sure.

Are people stupid enough to try to change the past by pretending it didn't exist? I seem to recall another group of individuals that tried to shape the past with their own views. They were very active when the original Senators played. They were from Germany and had a painter as a leader.

I'm not saying that the rights holder of the Senators name is as bad as the National Socialist German Workers' Party, but what exactly could be the reason for the Nationals name appearing on cards of games from the 1950s and earlier?

Maybe I'm making too much of this. It just seems odd that a massive set dedicated to the history of the game could fail so miserably with something as simple as a team name. Then again, I could be watching too much of Hogan's Heroes on Me-TV and TV Land.

***UPDATE***

I was just informed by dayf that the actual name of the first Senators team was actually the Nationals. The Senators name was more popular, so it eventually stuck. That little tidbit of information had completely slipped my mind. That piece of info must have been shoved out with something I learned last year.

No sue-happy rights owners, no Nazi plots... just history.