As a big fan of the entire series from HBO and one not too happy with the movie already a couple years old I learned that the producers sat down and read letters written back in the period and put together what they liked to refer to as "Period Correct" spoken word. One thing folks forget about those days, even though education was pretty sparse with folks even in my grandfather's day (Born in 1901) only getting an 8th grade education. That 8th grade education was pretty danged good, with emphasis on reading, writing and rithmatic. I loved the way the grammer might be correct and even seem a bit flowery the use of profanity just added for color. Swearingen had the best part and Ian did a bang up job...