Mikki is writing an essay about the effects of the chicago fire of 1871, and she is using jim murphy’s the great fire in her research. why is this book considered a credible source? it includes firsthand accounts of the fire and its aftermath. it includes only facts from people who were there and no opinions. it was written by an author who experienced the fire himself. it was written by a single author, not multiple authors.

It includes firsthand accounts of the fire and its aftermath

Explanation:

Jim Murphy has been able to recreate the incident through  research. He has been able to link the vivid account of survivors with the history of Chicago. This is the reason why the book includes firsthand accounts of the fire ; and the fact the author has framed them within the history of Chicago makes his book a realiable source for the  essay. Besides, he has narrated the consequences of the fire with an optimistic view: in spite of the  massive destruction, people from Chicago did their best to rebuild the city.