MAYFIELD, Ky.—Clean-up crews in western Kentucky’s devastated communities on Tuesday ramped up their Herculean task of carting away mountains of debris left by last week’s killer tornadoes as survivors huddled together for warmth and support. In the hard-hit city of Mayfield, five families bunked together at the home of Reina Guerra Perez, swaddled in donated blankets and cooking on a fire built with scavenged wood. “We’re cooking out back using the wood from fallen trees and keeping food warm as best we can,” she said. Her house survived, but the 26 people seeking shelter there on Tuesday had no access to running water or electricity. The search for bodies beyond the 74 known fatalities came up empty on Tuesday. The tornadoes’ victims included more than a dozen children, Beshear said, among them a 2-month-old infant. The oldest to die was 98 years old, he said. “I still expect that we …