I agree with several of the already mentioned books
Here are some more though I don't know how many can be found for the kindle
A midwife's story Penny Armstrong
Listen to me good, the story of an Alabama midwife, Margret Charles Smith
Motherwit: An Alabama Midwife's Story, Onnie Lee Logan
Why Not Me, Gladys Milton
orlean puckett the life of a mountain midwife
the King's Midwife,
the midwife's tale: an oral history from handy woman to professional midwife by Nicky Leap and Billie Hunter. , this has a similar title to a more famous book so note the whole title, these gals went around and interviewed old midwives in England, I actually wish I could hear the interviews,
This book is old and is on line here and also may be part of google books too, it has some important historic info on how docs of the day ignored midwives better stats and continued to try and get rid of the midwife problem.
White House Conf. on Child Health & Prot Obstetric Education: Report of the Subcommittee on obstetric teaching & education c1932] NY Graphic Html Free CornellU
http://www.digitalbookindex.com/_search/search010homeecoeducationa.asp