William R. (William Ray) Manning

William R. Manning, or William Ray Manning, was an American historian who lived from 1871 to 1942. Sources available during this search describe him as one of the early specialists in Latin American history, a field he helped develop at a time when it was still taking shape in U.S. universities.

He is closely associated with documentary and diplomatic history. His best-known work includes Diplomatic Correspondence of the United States Concerning the Independence of the Latin-American Nations, and library records also connect him with studies of Texas and boundary questions. An obituary notice in the Hispanic American Historical Review describes him as a pioneer in the study of Latin American history.

I wasn’t able to confirm a suitable portrait image from the pages I checked, so no profile image is included here.