Professor Greene received his Ph.D. from Columbia University. He is on the Board of the New Jersey Historical Commission and is a past chair of the Board. He has received summer fellowships from the National Endowment for the Humanities, a research fellowship from the Schomburg Center for Research in Black History and Culture, and was a Fulbright Fellow at the University of Muenster in Muenster, Germany in 2005-2006. He teaches courses at Seton Hall University in the areas of Civil War & Reconstruction Era history, World War II, Propaganda and World War II, and African American History. Professor Greene chaired the Multicultural Program at Seton Hall University from the early 1990′s to 2004. It concentrated on the racial, ethnic, and religious diversity within America and the world. Under his Chairmanship, he brought speakers to campus dealing with the Holocaust, Jewish immigration, and Zionism.
He has presented papers at scholarly conferences on Nazi propaganda in both print and film at the Columbia University Cinema Seminar, the German Studies Association, and the Association for the Study of African American Life and History. In addition to the publication of articles in these areas he is the co-editor of Slavery: Its Origins and Legacy, co-author of the African American History Curriculum Guide, and co-editor of German and African Americans: Two Centuries of Exchange. He is presently working on a book, World War II and the New Jersey Home Front.