Mary is a woman who lives in the Artisan District. She is Duglass' wife and thinks that he is cheating on her, although this turns out to be a huge misunderstanding on his part. Her name in the North American version is Ruby.
During the day she can be found hanging clothes in between Duglas's house and Steele's house
At night, she can be found inside of Duglas's house.
She will have extra things to say if you have the Miner Life