Thank you for your message. The color photograph that I posted above shows members of the Engineer Special Brigade (notice the white crescent and Engineer insignia on their helmets). As already indicated, you're quite correct - the Pouches being carried by the personnel in the first photograph are indeed the USMC Corpsman Pouches, but I do not believe that the personnel pictured are members of the Naval Beach Battalions. The Geneva Convention markings applied to their M1 Helmets is not typical of the Beach Battalion personnel; I could be wrong, though.
Finally, regarding the 'Utah Beach Medical Bag', you are correct - it was based upon the Navy Shore Bag, and was likely inspired by the model during amphibious training in England. You can read more about it on the following page of our website > http://www.med-dept.com/articles/miscel ... ags-packs/
In particular, the following excerpt is particularly pertinent:
A close study of photographs taken on Utah Beach of 4th Infantry Division medical personnel reveals that the unit was issued with a specially designed bag to hold medical supplies. The Bag was heavily based upon the Navy Shore Bag which was a standard piece of US Navy Medical Department equipment during WW2. Indeed, photographs taken during training exercises in England in the run-up to the invasion of Normandy show these latter Bags in use by 4th Infantry Division Medical Detachment personnel, and it is likely that these were obtained from the Navy Beach Battalions also training with the units.
As you will likely have read on our Forum, two versions of the Bag are known to exist. The Navy edition, and a special 'Army' version.
Hope the above helps, and thanks again for your comments,