I recently took Liam to Maryland to meet my 88 year old grandma. I knew my mother was born at her grandma's house, but I didn't know any of the details, so I asked granma about it. She gave birth to my mom when she was 19 years old and she went into labor while at her MIL's house. My great-grandma did most of the coaching, but she also had a midwife. Apparently, that was the norm in the 40s. They didn't live out in the country either, this was in Baltimore. It was very costly to have a hospital birth in those days and health insurance didn't really exist yet so only the wealthy went to the hospital for birthing. She said the family doctor did come by later to see the baby, but he didn't "do" anything or take part in the birthing process at all.
Grandma's second birth was 3 or 4 years later (after my grandfather had come back from WWII). She gave birth in their apartment with a midwife again. My mom was there the whole time but they kept her out of the bedroom during the actual birth. It was a breech delivery done safely at home.
Her third child was born in the mid 50s in a hospital b/c she went into labor at 28 weeks, so he had to be kept in an incubator. It was a vaginal birth, but she was given an epidural. Her fourth child was born in 1962...twenty years after my mom was born and was also born in the hospital w/epi.
Interesting that things seemed to really shift between 1940 and 1960.