First thing comes to mind, why would a brother at Bethel be having a blood transfusion? Was it forced upon him? Did he choose to have one and died and this is an object lesson for other JWs not to take blood transfusions?
As I recall (faintly), it was not forced upon him, but he accepted the treatment because at that time (probably in the early 40's) there was no prohibition on BT yet. And this event was supposed to have contributed to the elaboration of the later WT stance.
Second, was this book a WT publication or authored by a JW in good standing?
I wondered if it was not in one of Ray Franz's books, but couldn't find it either in CoC or ISoCF. Or was it in some talk by a GB member? The strange thing is I remember it just as domi... might be a French JW urban legend, though I wonder why it should have originated here...