Harleigh Bradley Trecker was born 11 February 1911 in Calery, Illinois. Trecker attended George Williams College (B.S., 1934) and the University of Chicago (M.A., 1938) before embarking upon a career in social work. From 1938 until 1941, Trecker was an instructor at George Williams College and in 1941; he accepted a position at the University of Southern California. In 1951, Trecker accepted the position of Dean, School of Social Work at the University of Connecticut; a position he retained until 1968. From 1968 until his retirement in 1977, Trecker held the position of Professor of Social Work. Trecker's research focused on social work administration and boards of community service agencies. Harleigh Trecker died in 1986.