the abbreviation is D.H.L.

Maya Angelou was awarded over 50 honorary doctorate degrees from various universities for her outstanding contributions to literature, poetry, and civil rights advocacy. As a way to honor her accomplishments and expertise in these fields, many people refer to her as "Dr. Angelou."

The appropriate academic regalia for a recipient of a Doctor of Humane Letters honoris causa typically includes a black gown, a velvet tam or round cap, and tassel, as well as other ceremonial elements such as hood and stole in the academic institution's colors. The regalia signifies the honorary nature of the degree and distinguishes it from earned academic degrees.

James VanDerZee died May 15, 1983 of a heart attack shortly after receiving the Doctor of Humane Letters degree from Howard University in Washington, DC.

The letters DC mean that this doctor is a doctor of chiropractic, or chiropractor.

These letters differentiate him/her from a doctor of medicine (MD) or doctor of dentistry (DDS) or doctor of osteopathy (DO), or doctor of podiatry (DPM), or doctor of phiosophy (PhD), etc.