Davis knew about Charles's marriage to Catherine, his late wife. Charles's family were butlers and as butlers, they always got into arranged marriages with other families who were butlers.
Catherine was the daughter of Harrison, a butler who had worked for Williams Harris, Davis's great-grandfather. Harrison had worked for Williams for twenty years before he got married to his wife and gave birth to Catherine.
When Catherine was old enough to get married, Harrison had gone to Charles's father to arrange a marriage between his daughter and Charles. Being a reputable butler, Adam Walker consented to the marriage between the two, and at that time, Charles had just started working for the Williams family as a butler for their son, Davis. So it was a good idea since Harrison would enlighten him more on how to serve the Williams family well.
