The officers pictured in this photograph are wearing the Chapeau cover and shoulder knots (epilates). All commissioned officers of this time era were required to wear the “Marine Hospital Service” sword with all “service uniforms” for “inspections, and musters.” The personnel pictured in uniform in the back row are “enlisted personnel” of the Service. The first person in uniform from the left is an “Acting Assistant Surgeon.” The men wearing the double-breasted uniform jackets are “Hospital Stewards First Class.” The last person on the far right wearing a single-breasted uniform is a “Hospital Attendant.”