Jeff Dahmer was born in Milwaukee on May 21, 1960, to Lionel and Joyce Dahmer. He was a child who was wanted and adored, in spite of the difficulties of Joyce's pregnancy. He was a normal, healthy child whose birth was the occasion of great joy. As a tot, he was a happy, bubbly youngster who loved stuffed bunnies and wooden blocks. He also had a dog named Frisky, his much-loved childhood pet.
Despite a greater number than usual of ear and throat infections, Jeff developed into a happy little boy. His father recalled the day that they released back into the wild a bird that the three of them had nursed back to health from an injury: "I cradled the bird in my cupped hand, lifted it into the air, then opened my hand and let it go. All of us felt a wonderful delight. Jeff's eyes were wide and gleaming. It may have been the single, happiest moment of his life." The family had moved to Iowa, where Lionel was working on his Ph.D. at Iowa State University.