Grebanier was a professor of English at
Brooklyn College from 1926 until 1964. He was a prolific critic during and after his academic career. Grebanier was friendly with other drama critics in the greater
New York City but perhaps none was a better friend than
New York Evening Post editor and chief drama critic
Joseph Cookman. When Cookman died in 1944, the Post selected Grebanier's tribute to run in the paper among the dozens of tributes sent in. Grebanier's classes "were the most popular at Brooklyn" between the end of
World War II and his retirement in 1965. ==Selected works==