Who was viceroy when second round table conference happened?

Who was viceroy of India when Jallianwala Bagh massacre happened?

Who was viceroy when first railway started in India?

Who was the viceroy of India when Quit India movement started?

Who of the following was the first Viceroy of India?

Which Viceroy's period was called for, "Missions, Omissions and Commissions".