Name The Year: Dylan Thomas author-poet, dies in NY at 39.?

Questions

What song by Dire Straits Mark Knopfler was inspires by seeing a second rate jazz band in a pub at Greenwich?

What does iron become if a little carbon is added?

Which book written by Edith Holden became a best seller recently, well after her death?

Who becam an actor after being dismissed by Marks and Spencer training scheme because of his outrageous clothes?

What are cone bearing trees called?