How do members of Dr. Roylott's family lose the family fortune?

Answer 1

"The family was at one time among the richest in England, and the estate extended over the borders into Berkshire in the north, and Hampshire in the west. In the last century, however, four successive heirs were of a dissolute and wasteful disposition, and the family ruin was eventually completed by a gambler, in the days of the Regency. Nothing was left save a few acres of ground and the two-hundred-year-old house, which is itself crushed under a heavy mortgage. The last squire dragged out his existence there, living the horrible life of an aristocratic pauper; but his only son, my stepfather, seeing that he must adapt himself to the new conditions, . . ." -- Helen Stoner, 'The Adventure of the Speckled Band'