When Augusten's mother receives a rejection from the New Yorker magazine, the return address is "4 Times Square" (the magazine's current address). In the 1970s, the address was "25 W. 43rd St.," where they had been for five decades.
The labels on Deirdre's pill vials in the 1978 segment are in a proportional font, and appear to be laser-printed. In 1978, prescription labels would have been prepared on a typewriter with a monospace font.
As Augusten and Bookman walk down the street to his car following their date at the movies in the 1970s, the reflection of a huge modern lighted Borders Books sign can be seen reflected in a store window.
In one scene in which Augusten and Natalie Finch are sitting in the kitchen talking, there is an extended closeup of Natalie smoking a cigarette. The brand is unmistakably American Spirit, a brand that was not out then.
In a scene between Dr. Finch and Bookman: Dr. Finch yells that he sent Bookman to photography school at the University of Rochester (U of R). The U of R is a medical and research school, with no photography majors. However the Rochester Institute of Technology is a world-known college for photography majors.