According to Dr. Jekyll's will, who would inherit all of Dr. Jekyll's money and
property should he die or even disappear? (p. 15)

Edward Hyde

Explanation:

Utterson, prompted by his conversation with Enfield, goes home to study a will that he drew up for his close friend Dr. Jekyll. It states that in the event of the death or disappearance of Jekyll, all of his property should be given over immediately to a Mr. Edward Hyde.

what are the words supposed to be listed?

mark twain, real name samuel langhorne clemens, was an american writer, humorist, entrepreneur, publisher, and lecturer. among his novels are the adventures of tom sawyer and its sequel, the adventures of huckleberry finn, the latter often called "the great american novel". wikipedia