Sheridan is Harrison's cousin and as she has no older brothers, he fulfills that role for her. As of 94/95 she is in fourth year and is a Ravenclaw. Harrison is a generous man who likes to share the wealth that his line of the family has earned about so they would likely be well acquainted from family gatherings. She is quite intrigued by his courtships hoping he might find himself someone good and would know a couple of the debutantes he dated (and also been probed for information on the). She could be a good candidate for prefect duty come September.