This series contains 88 folders and is divided into four sub-series: Correspondence from Loraine Epps (his future wife), Correspondence During Illness and After Death, Other Personal Correspondence, and Professional Correspondence. The first three sub-series (all personal correspondence) contain 61 folders and are arranged chronologically. Unfortunately, letters written by Professor Anderson to Miss Epps were lost. Professional Correspondence contains 31 folders and is arranged alphabetically by folder title.