Published genealogies provide a great source of information about individuals. Start with the index of McKinzie's Hawaiian Genealogies. If you find your person, use the other books listed below to learn more about your person's ancestors.
City Directories list names, professions, addresses of individuals, as well as many business ads. The city directories are excellent for biography research because you can trace the home address and profession of a person.
Biographical dictionaries provide brief biographical sketches of selected people, sometimes including names of spouses, children, parents, other family members, and a succient overview of the person's life and accomplishments.