Who is Hanley from Hell House and what is their importance?

Rolf Deutsch's male secretary, it is Hanley who makes all of the arrangements for the group to stay in Hell House. He is the one who communicates with the couple from Caribou Falls who are to bring meals twice a day, and he is also the one who calls Lionel with the news that his employer is dead, and that the son has no intentions of honoring his contract with them. In fact, he tells Lionel, they are to leave immediately. Hanley stays with Deutsch until his death, but refuses to stay on afterward with the son, the task too distasteful to contemplate.