Constance Christine "Connie" Smith, born July 11, 1942, was a 10-year-old camper at Camp Sloane, a YMCA-operated summer camp near Lakeville, Connecticut, when she disappeared on July 16, 1952. Connie was the daughter of wealthy Wyoming rancher Peter Franklin Smith and Helen Jensen Smith, who had divorced in 1949. Her family included prominent Wyoming political connections, and Connie was noted by those who knew her as an intelligent and imaginative child.
On the morning of her disappearance, Connie had reportedly been involved in "horseplay" with tent mates that left her nose bleeding and possibly broke her eyeglasses, on which she depended due to severe near-sightedness. She told tent mates she planned to return an ice pack to the camp dispensary, but instead left the tent and walked roughly half a mile to the camp entrance. The camp's gatekeeper saw her leave at 8:15 a.m. and pick wildflowers along the roadside, but mistook her for a counselor due to her height and mature appearance. Witnesses reported Connie stopping at nearby homes to ask directions to Lakeville, and she was last seen hitchhiking at the intersection of U.S. Route 44 and Belgo Road at 8:45 a.m. She was never seen again. The camp director did not report her missing to police until 11:30 a.m., more than three hours after she was last seen.
The case drew significant media attention due to the Smith family's prominence, and Connecticut State Police conducted extensive searches by foot, horseback, vehicle, and air across mountain trails, woodlands, reservoirs, and swamps. Eleven thousand missing-person flyers were distributed nationally, and Connie's dental chart was published in a dental journal to aid identification efforts.
Investigators initially considered whether either divorced parent might have taken Connie amid custody tensions but ruled out both. Multiple theories have since been proposed, including accidental death (such as being struck by a vehicle or suffering a head injury from a fall the night before she disappeared), abduction and murder by an unidentified serial killer operating in the New England region, and a claimed confession in 1953 by a traveling salesman who later recanted his account after inconsistencies emerged and admitted he may have fabricated the story after watching a television program featuring Connie's father. Another theory connects Connie to the unidentified remains of a teenage girl found near the Grand Canyon in 1958, nicknamed "Little Miss X"; dental similarities were noted, but a 2018 DNA comparison against a sample from Connie's brother did not match. A separate theory has linked her disappearance to a suspected serial offender also connected to a 1951 disappearance in Ohio, though that individual denied involvement and passed a polygraph test.
No physical evidence, remains, or definitive suspect has ever been confirmed, and the case remains unsolved.