[3] In 1933, at the age of 17, she was admitted to the prestigious Cooper Union School of Art in New York, where in 1935 she received the school's Silver Medal, its highest honor, for a painting entitled "Church Scene,"[4] which "depicts a realism of religious fervor prevalent in many churches at that time.

Since childhood, Seabrooke had been painting and drawing images of "Black American lifestyles and African symbolism" and this had influenced her art "which ranges from social realism to decorative design.

[4] In 2008 Cooper Union presented Seabrooke with a lifetime achievement award, and the school now considers her a member of its class of 1937.

"[8] Seabrooke added eight white characters to the mural, but obscured their race in some cases and turned their face from the viewer in others.

I enjoy drawing portraits and prefer charcoal and pastels for the sculptural quality of form, line, and texture.

"[11] In 1977, Seabrooke traveled to Lagos, Nigeria to represent the United States at the Second World Black and African Festival of Arts and Culture (FESTAC).

Seabrooke's work appeared in 72 major exhibitions between 1933 and 2003 in the United States, Senegal, Venezuela, and Nigeria.