Ms. Loyau-Kennett, who lives in Cornwall in southwest England, told several British media outlets Wednesday night and Thursday morning that she was returning from a trip to France and was visiting her children in London when the bus she was on stopped because of the melee.

WSJ: Woman Tried to Reason With London Attackers

Ms. Newman grew up a few miles from Messex and moved about 100 miles southwest to Denver in her early 20s because she couldn't find work near home.

WSJ: A One-Horse Town Down to Two People