The text mentions two primary, detailed Guru biographies from Maharashtra suitable for Parayans. What are these works and their authors?

The preface highlights two exceptionally detailed and famous poetic Guru biographies from the Maharashtra region. The first, as mentioned in Chapter 0, is the older 'Brihat' or 'Thorale Guru Charitra'. This work was written by Shri Saraswati Gangadhar and details the life of Shri Samarth Sadguru Narsimha Saraswati Maharaj. The second is the more recent 'Shri Sai Satcharita', written by Shri Govind Raghunath alias Annasaheb Dabholkar, which chronicles the life of Shri Sai Baba Maharaj of Shirdi.