At least one of the issues raised here - the question of whether criminal tendencies can be passed down genetically - seems "inspired" by a popular play and film of the time, The Bad Seed (1956). Among the cast of the 1956 film version of Seed was William Hopper (Paul Drake).
The tobacco that Nadine gives Cap't Hugo is Kentucky Club pipe tobacco, no longer available.
Perry states that his home telephone number is unlisted.