Watson graduated from the then segregated Joseph Moore Davidson High School (since Tensas High School) in St. Joseph. He completed his undergraduate studies at [[Tulane University]] in [[New Orleans]] in three years and then at the age of twenty-two received his law degree from that same institution. While at Tulane, he was listed in ''Who's Who in America'' and served on the staff of ''The Tulane Law Review''. He was affiliated with the Sigma Alpha Epsilon fraternity and the Omicron Kappa honorary society. For two years, he was in the [[United States Navy]], after which he returned to join his father Phillip Brook, Sr., in the practice of law.<ref name=obit>{{cite web|url=http://www.legacy.com/obituaries/thenewsstar/obituary.aspx?n=phillip-brooks-watson&pid=188333886|title=Phillip Brooks Watson, Jr.|publisher=''The Monroe News-Star''|date=March 2, 2018}}</ref> | Watson graduated from the then segregated Joseph Moore Davidson High School (since Tensas High School) in St. Joseph. He completed his undergraduate studies at [[Tulane University]] in [[New Orleans]] in three years and then at the age of twenty-two received his law degree from that same institution. While at Tulane, he was listed in ''Who's Who in America'' and served on the staff of ''The Tulane Law Review''. He was affiliated with the Sigma Alpha Epsilon fraternity and the Omicron Kappa honorary society. For two years, he was in the [[United States Navy]], after which he returned to join his father Phillip Brook, Sr., in the practice of law.<ref name=obit>{{cite web|url=http://www.legacy.com/obituaries/thenewsstar/obituary.aspx?n=phillip-brooks-watson&pid=188333886|title=Phillip Brooks Watson, Jr.|publisher=''The Monroe News-Star''|date=March 2, 2018}}</ref> |