Doctor Henry A. Danker was a graduate of Columbia University, Class of 1864.. He was appointed an Acting Assistant Surgeon in the volunteer Navy on 15 March 1864. On 1 April 1864, he was ordered to the U.S.S. Tecumseh . He received his commission into the regular Navy on 28 April 1864. 
Dr. Danker was aboard the Tecumseh and died when she sank after striking a mine during the Battle of Mobile Bay.
Awards & MemorialsColumbia University Roll of Honor
Alternate Spellings of Name
References and Sources Columbia University. College of Physicians and Surgeons, Catalogue of the Alumni, Officers and Fellows, 1807-1891 (Bradford Press, 1891)
 "Official Intelligence: Volunteer Navy The United States Service Magazine (May 1864)
 "Official Intelligence: Regular Navy The United States Service Magazine (June 1864)