Well, my beloved Deadwood is over forever. I've read that some people take issue with the florid speech of the characters (no, not the potty-mouth bits, the other bits), but I find this quite a likely form of address for that epoch.
Watch the Ken Burns documentary on letters between American Civil War-era soldiers and their loved ones back home. Personal address was obviously of a much more formal order then than what we see today, and taking that into account, I think the Deadwood writers nailed it. Besides, I love hearing the language so masterfully deployed. The current state of English address (or rather, American, at least) is like having access to a Lamborghini, but opting to take the Yugo everywhere instead. What a waste.
I looked Deadwood up on Wikipedia a few weeks back and saw that Al Swearengen and Seth Bullock were in fact real people. Seth Bullock went on to exalted place in Teddy Roosevelt's inner circle and was instrumental in the formation of the first US lands preserved in the form of a National Park. Swearengen ran several saloon/brothels in Deadwood. Sounds like he was a tragic character, actually.
I have to say that all my loathing in the show finally fell squarely at the feet of one George Hearst, who I dearly hoped would be dished up a goodly portion of lead to the brainpain in this episode. This was not to be. I was hoping he would be unrelated to THE American Hearsts, but, alas, George went on to father William Randolph Hearst, newspaper magnate, and great-grandfather of my favorite bankrobber Patty Hearst.
My favorite moment of this episode was Hearst's cook--Aunt Lou-- tidying up one of the town mental-defectives to bustle him out to vote against Hearst's interests in the election. Aunt Lou had been a devoted servant/assistant to Hearst, yet he had engineered the murder of her son(several episodes back), claiming it was a random robbery-type occurrence. Jerk. Anyway, it inspired Aunt Lou to get out the vote when the chips were down.
The show didn't end with the whole town burning down or anything, and there was plenty of unresolved tension. Final shot of Al is of him scrubbing the blood from the planks of his chamber floor after cutting someone's throat, the Nigger General is in line to vote, Calamity Jane is drunk and weeping for her dear lost Wild Bill Hickock, and George Hearst is riding high.
Not a jolting finish to this television masterpiece, but perhaps more realistic for the laborious creaking wind-down, and a harbinger of things to come for all the characters.