Overview

Last Seen: April 1, 1985

Location: Green Bay/Ashwaubenon, Brown County, Wisconsin

Age: 40

NamUs: MP12731

Doe Network: 4953DFWI

Main circumstances: Janet Robinson disappeared from the Green Bay/Ashwaubenon area in April 1985 and has never been seen or heard from again. Very few circumstances surrounding her disappearance have been publicly released. Authorities have not publicly identified a suspect or announced a resolution of the case.

Detailed Case Breakdown

Janet C. Robinson Missing Person Case: Green Bay, Wisconsin, 1985

Janet C. Robinson was 40 years old when she disappeared from the Green Bay/Ashwaubenon area of Wisconsin on April 1, 1985. More than four decades later, Robinson has never been found, and publicly available records reveal remarkably little about what happened immediately before she vanished.

Her disappearance remains listed with Wisconsin authorities as a missing-person case.

Janet Robinson’s Disappearance

According to the Wisconsin Clearinghouse for Missing & Exploited Children & Adults, Janet C. Robinson disappeared on April 1, 1985, from Green Bay (Ashwaubenon), in Brown County, Wisconsin.

Robinson was 40 years old at the time. She was described as a white woman with brown hair and blue eyes, approximately 5 feet 2 inches tall and weighing about 105 pounds.

The publicly released circumstances are extremely limited. Wisconsin authorities state simply that Robinson was last seen in April 1985 and has not been seen or heard from since.

Very Few Details Have Been Released

One of the most striking aspects of Janet Robinson’s case is how little information has become public despite the amount of time that has passed.

Public case summaries do not identify who last saw Robinson, precisely where in the Green Bay/Ashwaubenon area she was last seen, what she was doing before she disappeared, whether a vehicle was involved, or what belongings she may have left behind.

There is likewise no publicly documented explanation for why she disappeared.

The available official records do not classify Robinson’s disappearance as a homicide and do not publicly identify a suspect or person of interest. For that reason, claims that she was murdered, or that a particular person was responsible for her disappearance, should not be presented as established fact without additional law-enforcement documentation.

The Two Rivers, Wisconsin Discrepancy

Some references to Janet Robinson’s case may associate her with Two Rivers, Wisconsin, but the official Wisconsin missing-person record does not list Two Rivers as the location of her disappearance.

The Wisconsin Clearinghouse identifies Green Bay (Ashwaubenon), Brown County, as the location from which Robinson went missing. Her official missing-person poster likewise states that she was missing from Green Bay, Wisconsin.

No reliable source located for this case established that Janet Robinson disappeared from Two Rivers or that her case originated there.

Janet Robinson’s Description

At the time of her disappearance, Robinson was approximately 5 feet 2 inches tall and weighed about 105 pounds. She had brown hair and blue eyes.

A March 2026 discussion on Websleuths reported that Robinson’s NamUs entry had been updated with two distinguishing birthmarks: one on the back of her neck, described as approximately the size of a half-dollar, and another on her left hip, described as approximately the size of a baseball.

Because this detail is being reported through a discussion forum reflecting a reported NamUs update rather than the Wisconsin Clearinghouse page currently available through public search results, it should be treated as a secondary-source update unless independently confirmed through NamUs.

NamUs and the Continuing Search for Janet Robinson

Robinson is registered in the National Missing and Unidentified Persons System under NamUs case number MP12731.

The Wisconsin Clearinghouse continues to publicly list her as a missing adult. Its current listing places her disappearance on April 1, 1985, in Green Bay/Ashwaubenon and continues to request information from the public.

Her case has also gradually received additional exposure from missing-person organizations and online communities.

Wisconsin Missing Persons published a case profile in 2021 noting that investigators were still searching for Robinson despite the scarcity of publicly available information.

Janet Robinson Added to the Doe Network

A notable development occurred in December 2024, when Janet Robinson’s disappearance was added to the Doe Network.

The organization assigned her case number 4953DFWI. The Doe Network’s December 9, 2024 update specifically recorded the addition of Janet Robinson, missing from Wisconsin since 1985.

Adding an older disappearance to another major missing-person database can increase its visibility and provide another reference point when missing-person cases are compared with unidentified-person cases.

Latest Publicly Reported Case Activity

The most recent publicly located development concerning Robinson occurred in March 2026.

A Websleuths discussion dedicated to her disappearance reported on March 17, 2026, that her NamUs record had been updated. According to the poster, the visible change was the addition of information describing Robinson’s two birthmarks.

That update is significant because distinguishing physical characteristics can potentially assist investigators and researchers comparing long-term missing-person cases with unidentified remains.

However, there has been no publicly announced identification, arrest, recovery, or resolution of Robinson’s disappearance located in the available records.

The Wisconsin Clearinghouse continues to list Janet Robinson as missing.

More Than Four Decades Without Answers

Janet Robinson’s disappearance stands out because so little of the story is publicly known.

What is documented is straightforward: Robinson disappeared from the Green Bay/Ashwaubenon area on April 1, 1985. She was 40 years old, 5 feet 2 inches tall, approximately 105 pounds, with brown hair and blue eyes. She has not been seen or heard from since.

Her disappearance is recorded as NamUs MP12731, and her case was added to the Doe Network in December 2024.

More than four decades after Janet Robinson disappeared, Wisconsin authorities continue to seek information that could explain what happened to her.

Brief Case Summary

Last Seen: April 1, 1985

Location: Green Bay/Ashwaubenon, Brown County, Wisconsin

Age: 40

NamUs: MP12731

Doe Network: 4953DFWI

Main circumstances: Janet Robinson disappeared from the Green Bay/Ashwaubenon area in April 1985 and has never been seen or heard from again. Very few circumstances surrounding her disappearance have been publicly released. Authorities have not publicly identified a suspect or announced a resolution of the case.