Final answer:
The provided texts do not contain information about Annie and Mrs. Hartzell; therefore, it is not possible to answer what Mrs. Hartzell called Annie for a year.
Step-by-step explanation:
The specific incident of Annie's neighbor across the hall, Mrs. Hartzell, calling her by a particular name for a year isn't directly mentioned in the provided excerpts. Therefore, it's not possible to provide an exact answer to the question based on the given references. The texts presented appear to be from various literary sources and focus on different characters and scenarios. They feature characters such as Mrs. Wright, Mrs. Sieppe, and Mrs. Peters, among others, but do not contain information about Annie and Mrs. Hartzell. Consequently, without additional context or information from another part of the source material where this incident is detailed, one can't accurately respond to the question.