Indy's girlfriend and Edward Stratemeyer's daughter is named Nancy, presumably an homage to Stratemeyer's Nancy Drew. Historically, Stratemeyer's two daughters were named Harriet and Edna.
Indy and Nancy repeatedly ride their bicycles from Princeton to West Orange. The distance is too great for this to be feasible. My own commute between these two cities was 45 miles each way, and included the use of highways which didn't exist in 1916.