Theodore Roosevelt Memorial National Park vs Theodore Roosevelt National Park

Theodore Roosevelt Memorial National Park and Theodore Roosevelt National Park both are nouns.

Word	Noun	Adjective	Verb	Adverb
Theodore Roosevelt Memorial National Park	Yes	No	No	No
Theodore Roosevelt National Park	Yes	No	No	No

As nouns, Theodore Roosevelt Memorial National Park and Theodore Roosevelt National Park are synonyms defined as:

Theodore Roosevelt Memorial National Park and Theodore Roosevelt National Park: a national park in North Dakota that includes the site of former President Theodore Roosevelt's ranch

Theodore Roosevelt Memorial National Park (noun)	Theodore Roosevelt National Park (noun)
a national park in North Dakota that includes the site of former President Theodore Roosevelt's ranch	a national park in North Dakota that includes the site of former President Theodore Roosevelt's ranch