Conversation so far:
What was Arthur Miller's first play?
Arthur Miller first majored in journalism and worked for the student paper, The Michigan Daily. It was during this time that he wrote his first play, No Villain.
When did Arthur Miller write The Man Who Had All the Luck?
In 1940, Arthur Miller married Mary Grace Slattery. That same year his first play was produced, The Man Who Had All the Luck.
What was Arthur Miller's play The Man Who Had All the Luck about?
The play follows protagonist David Beeves’ existential exploration into the enigmatic question of how fate and the human will interact with each other.
How did Arthur Miller's play The Man Who Had All the Luck do?
The Man Who Had All the Luck failed on Broadway, lasting only four performances.
Did Arthur Miller do anything else besides write the play The Man Who Had All the Luck in 1940?
In 1940, Arthur Miller married Mary Grace Slattery.
Did Arthur Miller and Mary Slattery have any children?
Arthur Miller and Mary Slattery had two children, Jane and Robert.

Question: Are they identical twins?
Self-contained rewrite: Are Arthur Miller and Mary Slattery's children, Jane and Robert identical twins?