I want to know the answer to the following question:
What U.S. city kept observing DST to stay in sync with London, leading Chicago and Cleveland to follow along?
All the background I'm provided with is that "Reasoning that people should instead get up and go to work earlier in the summer, he ordered District of Columbia federal employees to start work at 08:00 rather than 09:00 during summer 1922.". Is that enough to answer the question?