Hello Terry, welcome to the forum. One of the more senior forum members (Ken, Jmad for two)can probably do a better job referring you to Senators / Nats history sites, but here are a couple of links to check out. There are probably some great blogs out there too.http://www.baseballindc.com/
MLB's official sitehttp://www.sportsecyclopedia.com/al/wastex/senators61.html
Somebody's memorial to the team I grew up with, the 2nd Senators franchise.http://www.cjis.com/historywbc.htm
Quite incomplete, but some interesting tidbits.
Note that the terms "Nats" and "Senators" were used interchangebly in the final decades of their history up until 1971. Thus while many of us would have preferred the Senators name be reincarnated, "Nats" fits like a comfortable old shoe.
Look forward to chatting with you more frequently.