Clarence William Hennan (1894–1956) was an internationally recognized philatelist known for his philatelic collection, his exhibits at various stamp exhibitions, and for his expertise in evaluating the authenticity of rare stamps.

Philatelic literature

Hennan authored various articles and books on specific aspects of philately

Philately

Philately is the study of stamps and postal history and other related items. Philately involves more than just stamp collecting, which does not necessarily involve the study of stamps. It is possible to be a philatelist without owning any stamps...

. These include:

• Haiti
  Haiti
  Haiti , officially the Republic of Haiti , is a Caribbean country. It occupies the western, smaller portion of the island of Hispaniola, in the Greater Antillean archipelago, which it shares with the Dominican Republic. Ayiti was the indigenous Taíno or Amerindian name for the island...
  
  : Postal History and Stamps (a series published over a 3-year period)
• Curaçao
  Curaçao
  Curaçao is an island in the southern Caribbean Sea, off the Venezuelan coast. The Country of Curaçao , which includes the main island plus the small, uninhabited island of Klein Curaçao , is a constituent country of the Kingdom of the Netherlands...
  
   Specialized (book published in 1952)

Collection interests

Dr. Hennan had various collections from which he authored philatelic articles. Today he is remembered for his:

• Chicago Postal History Collection

Philatelic leadership

Dr. Hennan provided leadership in the philatelic field in various ways:

• President of the American Philatelic Congress
• President of the American Philatelic Society
• President of the Collectors Club of Chicago
• Various positions in the Chicago Philatelic Society (Honorary Life Member)

Awards

For his leadership and accomplishments in the field of philately, Dr. Hennan was awarded:

• Newbury Award in 1951,
• Lichtenstein Medal
  Lichtenstein Medal
  The Lichtenstein Medal, also known as the Alfred F. Lichtenstein Memorial Award for Distinguished Service to Philately is given annually to a living individual for outstanding service to philately.-Origin:...
  
   in 1953,
• named to the Roll of Distinguished Philatelists
  Roll of Distinguished Philatelists
  The Roll of Distinguished Philatelists is a philatelic award of international scale, created by the Philatelic Congress of Great Britain in 1921...
  
   in 1956.

See also

• Philately
  Philately
  Philately is the study of stamps and postal history and other related items. Philately involves more than just stamp collecting, which does not necessarily involve the study of stamps. It is possible to be a philatelist without owning any stamps...
  
  
• Philatelic literature
  Philatelic literature
  Philatelic literature is written material relating to philately, primarily information about postage stamps and postal history- Background to philatelic literature :...
  
  
• Lichtenstein Medal
  Lichtenstein Medal
  The Lichtenstein Medal, also known as the Alfred F. Lichtenstein Memorial Award for Distinguished Service to Philately is given annually to a living individual for outstanding service to philately.-Origin:...
  
  
• Clarence William Hennan
• Collectors Club of New York