April asks Ann for a recommendation letter to veterinary school, however this episode was aired in March, and vet school applications are usually due in early October. Also Ann hands April an envelope containing her letter, but vet school recommendation letters are currently submitted entirely online. On top of these errors, there is no vet school at Indiana University (later erroneously referred to as the University of Indiana) in Bloomington. The only veterinary school in Indiana is at Purdue University.
The incident Ben Wyatt (Adam Scott) mentions involving a Sweetumsgiantmolasses vat exploding and causing an ecological disaster, including people dying, is based on an actual incident that happened in Boston in January, 1919.
While barbecuing Ron is wearing an apron from Charles Mulligan's Steak House which is revealed to be his favorite restaurant in the episode "Indianapolis." Excited to eat there when they travel to Indianapolis, he discovers it has been shut down for health code violations.
The states with towns named Pawnee mentioned in this episode are: Illinois, Indiana, Iowa, Kansas, Missouri, Nebraska, Oklahoma, and Texas.
Illinois, Oklahoma and Texas do all have towns named Pawnee. Nebraska and Iowa have towns named Pawnee City and Missouri has a Pawnee township.
Pawnee Kansas is a ghost town which is now home to The Pawnee Indian Museum State Historic Site.
Pawnee, Indiana is the only fictional town on the list.
The relationship name Tom comes up with for himself and Ann is "Haverkins" (a combination of their last names, respectively Harverford and Perkins).