I did a bit of detective work today and I now believe that the early Cook County death certificate films at IRAD are exactly the same as the ones available through the Family History Library. The IRAD film that I looked at had the FHL film number on the box and the certificate numbers on the reel (and the gaps) matched those on the FHL film perfectly.
When I look at birth certificates, I focus on names and dates and places--information I can add to a family tree. When I look at hospital records, I come face to face with the realities of giving birth. I think the records from the Chicago Lying-In Hospital and its satellite clinics provide fascinating and important family history details and I believe they merit a closer look. The hospital records are listed in the Family History Library Catalog (FHLC) as Chicago, Illinois birth records, 1896-1933 . The added author is Northwestern Memorial Hospital and I think the originals are most likely held by the Northwestern Memorial Hospital Archives . These hospital books document services provided by four clinics connected to Dr. Joseph Bolivar DeLee, the physician who founded the Chicago Lying-In Dispensary at Maxwell Street and Newberry Avenue in 1895. D r. DeLee was interested in improving birthing conditions and his clinics offered care to needy women while providing train