Yea, I will give some notes on Marshall.
He was the established lawman in town by the time both Madame Guinevera Starr and Irene came to town, but rumors and gossip does circulate. Any attempts to ask if their is truth to anything they might have heard results in a hard cold stare from him and utter silence. Behind the church their is two grave sites with the dates and names of James Mengsk (2 years old) and Clara Mengsk and he weekly leaves flowers without fail, 9am Sundays.
When Guinevera took over the saloon, the Marshall invested heavily in her with confiscated money from criminals. The way he manages confiscated money seems corrupt but he typically gives it back to the town more often. He never asks for "freebies" at the saloon and understands a woman needs to make her own money. He rarely asks for the physical companionship upstairs in one of the rooms, but despite everything he still has needs he likes to indulge once in a while (normally he needs to be really drunk to loosen his inhibition up enough to request going upstairs).