Who is Mr. Frazer from Lisa, Bright and Dark and what is their importance?

Mr. Frazer is Elizabeth's father. He also serves as what Betsy envisions as the perfect gentleman. Frazer is handsome, well-bred, well-dressed, and personable. He puts people at ease. Betsy is also impressed by Mr. Frazer's ability to talk to anyone about just about anything. It is obvious that Frazer loves his daughter Elizabeth very much. He even helps to pay Lisa's medical bills at his daughter's request.