D
Darrow, Clarence "Brother" (1857-1938)
80; The phrase “Attorney for the Damned” came into popular use in the 1920s, and it perfectly summed up how the press — and Darrow himself — wanted to frame his career, "The damned" being the socially outcast, the doomed, the despised — criminals, radicals, and the poor. Darrow was their man. He also represented John Scopes in the famous Scopes Monkey Trial in the 1920s, where he defended Scopes right to teach evolution. Wikipedia
Dawes, Charles G. (1865–1951)
135-136, Chicago banker, brigadier general in WWI, later Vice President under Coolidge, and, most importantly in this context, the architect of the 1924 Dawes Plan, devised to rescue the collapsed German economy after World War I, for which he received the 1925 Nobel Peace Prize. Lots of suspected connections between him and the Chicago Outfit.
132; journalist for Hep Debutante magazine, "writing a series of articles on how to be a Jazz Age adventuress on a Depression budget" and, thus, an Influencer. More about this character name here.
del Vasto, Porfirio
134; current/former husband of Glow; "an air of international monkey business," 136; "smooth as a ten-cent panatela," 138; (See this entry for name speculation.)
Dinkelsbühler, Mr. and Mrs.
67, "Old Country Germans with a busy kitchen sink" who knew Hicks since his childhood;
Dominic
48, One of Don Peppino's two "boys" or "torpedoes," the other being Nunzi
Don Peppino
See Infernacci, Don Peppino
Dracula
46, "opened last year in Chicago on Valentine's Day";
Drover
53, "bright young science whiz" at Skeet's clubhouse
Drys
74, "can seem like the violent ward at Winnebego"; “The Drys” were the political and social movement that supported Prohibition. Federal agents (and their local counterparts) were the enforcers who carried out Prohibition law; they were sometimes called "drys”" by slang extension, but technically they were government employees, not activists.
Dubinsky, Zbig
4, “energetic junior hire” at Unamalgamated Ops; "changed into his Lucky Necktie," 58; "soon as he's out of observation at County General," 77;
Durbow, Vic
66, "and his posse of Dry irregulars";
Dutchess of Uckfield
79; Uckfield is a market town in East Sussex, England, dating back to medieval times.