What was one of the roles of Dr. Thomas Holmes in the history of embalming?

Dr. Thomas Holmes is notably recognized for his significant contributions during the Civil War, where he played a pivotal role in the development and practice of embalming. His innovative techniques and methods were crucial for preserving the bodies of soldiers who had died in battle, enabling families to receive their deceased loved ones back home in a more dignified condition. Holmes's work during this period not only advanced the field of embalming but also highlighted the importance of preserving bodies for funerary purposes, leading to widespread adoption of embalming practices in the United States.

While other answer choices may relate to various aspects of embalming history, Holmes's connection to the Civil War marks a critical point in the evolution of the profession and its recognition. His contributions during this tumultuous time fundamentally shaped the modern practices of embalming and funerary care, establishing him as a key figure in this field.