Who is Mrs. Livingston from Reminiscences of a Stock Operator and what is their importance?

Larry Livingston's wife is not mentioned frequently, except to illustrate an occasional point about trading that he may wish to make. Since she is generally forbidden from trading, this does not happen often. In general, she is a representative of the public when it comes to trading—innocent and gullible. She has an allowance given her by Livingston, and at one point she acts on a tip given to her at a society dinner by one of Livingston's friends. Hoping to surprise him, she makes a trade, which in the end goes quite badly. She confesses her mistake, and he calls her a "silly girl," but quickly proceeds to make up her loss. In another vignette, she is shown having a dress made. From these examples, one gets the impression of a traditional wife and mother, but with enough money to play a social role in society.