According to the Statutes of the Nobel Foundation, information about the nominations is not to be disclosed, publicly or privately, for a period of fifty years. The restriction not only concerns the nominees and nominators, but also investigations and opinions in the awarding of a prize.
Joseph Stalin, the Secretary General of the Communist Party of the Soviet Union (1922-1953), was nominated for the Nobel Peace Prize in 1945 and 1948 for his efforts to end World War II.
Jane Addams was nominated 91 times between 1916 and 1931, when she was finally awarded the Nobel Peace Prize. By contrast Emily Green Balch, Fridtjof Nansen and Theodore Roosevelt received the Nobel Peace Prize the first year they were nominated.
See the Nomination Database for the Nobel Peace Prize, 1901-1955
Alfred Nobel left no explanation as to why the prize for peace was to be awarded by a Norwegian committee while the other four prizes were to be handled by Swedish committees. In his will it says:
"The prizes for physics and chemistry shall be awarded by the Swedish Academy of Sciences; that for physiology or medical works by the Karolinska Institute in Stockholm; that for literature by the Academy in Stockholm, and that for champions of peace by a committee of five persons to be elected by the Norwegian Storting."
On this point, therefore, we are dealing only with educated inferences. These are some of the most likely ones: Nobel, who lived most of his life abroad and who wrote his will at the Swedish-Norwegian Club in Paris, may have been influenced by the fact that, until 1905, Norway was in union with Sweden. Since the scientific prizes were to be awarded by the most competent, i.e. Swedish, committees at least the remaining prize for peace ought to be awarded by a Norwegian committee. Nobel may have been aware of the strong interest of the Norwegian Storting (Parliament) in the peaceful solution of international disputes in the 1890s. He might have in fact, considered Norway a more peace-oriented and more democratic country than Sweden. Finally, Nobel may have been influenced by his admiration for Norwegian fiction, particularly by the author Bjørnstjerne Bjørnson, who was a well-known peace activist in the 1890s. Or it may have been a combination of all these factors.
Read more in the article The Nobel Peace Prize 1901-2000
Individual persons connected to or working for a Nobel Prize awarded organization can not in any way describe him or herself personally as a Nobel Laureate.
Le Duc Tho, awarded the 1973 Nobel Peace Prize jointly with US Secretary of State Henry Kissinger, declined the prize. They were awarded the Prize for negotiating the Vietnam peace accord. Le Doc Tho said that he was not in a position to accept the Nobel Peace Prize, citing the situation in Vietnam as his reason.
Mahatma Gandhi was never awarded the Nobel Prize. The strongest symbol of non-violence in the 20th century never received the Nobel Peace Prize despite several nominations (12 nominations between 1937 and 1948.)
Read the article Mahatma Gandhi, the Missing Laureate
Here you can find information on the process of selecting Nobel Peace Prize Laureates and who has the right to submit proposals.