In the first minority appointments to its board of directors, the Acacia Mutual Life Insurance Co. has named Floretta D. McKenzie, D.C. superintendent of schools, Roger R. Blunt Sr., chairman of Blunt Enterprises, and Francis P. Chiaramonte Jr., chairman of the Southern Maryland Hospital Center, as directors.

All three were named to fill unexpired terms on the Washington-based insurance company's board. The positions became vacant following the retirement of two members and the resignation of a third, Thomas J. Owen, because of the potential conflicts of interest between his position as head of Perpetual American Bank and work for Acacia, which is affiliated with Acacia Federal Savings Bank. In April, McKenzie, Blunt and Chiaramonte will stand for election by the Acacia policyholders for three-year terms.

McKenzie, an educational consultant to the Ford Foundation, has served as deputy assistant secretary for school improvement at the Department of Education. She is a graduate of the D.C. Teachers College and Howard University, and has taught in both D.C. and Baltimore public schools.

Local businessman Blunt, a graduate of West Point and the Massachusetts Institute of Technology, served with the Army Corps of Engineers and as a senior associate with Harbridge House, an international consulting firm. He is the founder of several construction-related firms, including Blunt Enterprises, which he now heads. In addition, Blunt is president-elect and a director of the Greater Washington Board of Trade.

Chiaramonte, who has earned degrees from Columbia and Georgetown universities, is founder of the Marlow Heights Diagnostic Center and Capital Heights Medical Center, as well as the Southern Maryland Hospital Center, where he is chief executive officer and head of the urology department.

In addition, the Acacia board named C. Lawrence Evans a director of the firm. Evans, who joined Acacia nine years ago, manages the company's banking and investment-related activities.