The victim was found inside of a metal drum with a older girl, later identified as Sarah McWaters. Marlyse Honeychurch and Marie Vaughn had been discovered in the same location in 1985 and are believed to have been killed at the same time.
Authorities were initially unsure of this girl's relationship to the other three victims after DNA testing showed that the adult, oldest and youngest children were maternally related. It was speculated this girl may have been a family friend or that she was paternally related to the other victims.
Isotope testing indicated that the child likely originated from California, Oregon, Arizona or Texas.
In 2017 the investigators revealed information that the girl's biological father had been identified as Robert T. Evans (also known by the name "Bob Evans " and several other aliases), who was known as a former boyfriend of missing Manchester woman, Denise Beaudin, and a convicted murderer. He died in prison in 2010, and the police now believe that the girl's biological mother - never recovered - probably also fell victim to him. In August 2017, "Robert Evans" had been identified as Terrence "Terry" Rasmussen, who left his family in Arizona around 1974 and was never seen again by his relatives.
It is known he resided in Los Angeles County, California in 1978, where he met Marlyse and her children. He left New Hampshire in November 1981, suggesting the four victims died between this three-year window.
DNA testing conducted on the girl in 2020 later revealed the child was primarily white with partial Native American, Black, and Asian ancestry. There may be a possibility that her mother have have been most likely multiracial, As Bob Evans was Primarily White.