Who were some of Sai Baba's early devotees mentioned in the introduction, and what did they try to do for him?

The Introduction mentions several early devotees who were drawn to Maharaj. Annasaheb Gadgil, a collector's chitnis, became a full devotee after his faith grew steadily. Another devotee, Nanasaheb Dengle, was concerned about the dilapidated state of the Masjid and brought a thick wooden plank for Maharaj to sleep on comfortably. Similarly, Gopalrao Gund, a Revenue Circle Inspector who was blessed with a son, also became a total devotee. As Chapter 0 explains, he wished to rebuild the Masjid and even collected stones for the project. However, Maharaj did not grant him permission, as that work was destined for another devotee. Instead, the stones were used to build the Shani temple and renovate other village temples under Maharaj's command.