Mores also gave the name actuary to the chief official—the earliest known reference to the position as a business concern. The first modern actuary was William Morgan, who served from 1775 to 1830. In 1776 the Society carried out the first actuarial valuation of liabilities and subsequently distributed the first reversionary bonus (1781) and interim bonus (1809) among its members. It also used regular valuations to balance competing interests. The Society sought to treat its members equitably and the Directors tried to ensure that policyholders received a fair return on their investments. Premiums were regulated according to age, and anybody could be admitted regardless of their state of health and other circumstances.