Monique’s question: “I understand that hyphenation must be used between two words that form one adjective. However, if the words are a person’s name what would be the correct way of writing it, for example, Dag-Hammerskjöld-Honorary-Medal or Dag Hammerskjöld-Honorary Medal?”
BizWritingTip response: You are correct on the basic rule. If two or three words form an adjective, you must insert a hyphen.
A three-month vacation
An up-to-date report
However, there is an exception to this rule: If a proper name is used as an adjective, you do not use any hyphens. The capitalization of the first letters shows their relationship.
Dag Hammerskjöld Honorary Medal