(1854 - 1925)
J. Henry Allen was a student of H.C. Allen. He was the president of the IHA in 1900. Dr. Allen taught at the Hering Medical College in Chicago.
He wrote 3 books:
Diseases and Therapeutics of the Skin 1902
The Chronic Miasms: Psora and Pseudo Psora 1908
The Chronic Miasms: Sycosis 1908
Dr. Allen died August 1, 1925
Source: www.wholehealthnow.com