Showing posts with label presumed deceased. Show all posts
Showing posts with label presumed deceased. Show all posts

Missing Marilyn Byskal: Unsolved 1974 Canoe Trip Disappearance in Manitoba

Missing Person: Marilyn Byskal

  • Learn about the mysterious disappearance of Marilyn Byskal, including details of the last known sighting, the extensive but fruitless 10+ day search, and why the prevailing theory makes the most sense.
  • Explore newspaper articles from the time of her disappearance and a sad classified ad from the time that highlights her family's grief.
Not the actual setting. AI-generated image with prompts for a fast-flowing river in the late spring in northern Manitoba.

Details (paraphrased) from a Government Source

Marilyn Byskal was last seen at about 7AM on June 20th, 1974, during a school-organized canoe and camping trip near Wabowden, Manitoba, Canada. She was 18 years old at the time.

According to the official report, she was last spotted in the morning at her tent as the group woke up along the Grass River. Most campers believed she may have fallen into the river’s fast-flowing waters, though no one witnessed such an incident. 

An extensive 10-day searanch of the water and surrounding ground was conducted, but it yielded no results—no body, no belongings, no clues. She has not been seen or heard from since.

Source: Canada’s Missing, Case Reference #2012020052 (accessed via RCMP website, last modified May 10, 2023).

Last Contact: June 20th, 1974 (Thursday).
Additional Reference: Wabowden RCMP, Case #2012-534333.

Last Location: Near the Grass River, 25 miles northwest of Wabowden, Manitoba, Canada. Whitewood Falls is mentioned at the DoeNetwork.
Age When Disappeared: 18
DOB: May 1st, 1956 (DoeNetwork)

Sex: Female
Height in Inches: 69 (5’9”)
Weight in Pounds (lbs): 150
BMI: Marilyn Byskal had a BMI of 22.06, calculated from her height (69 inches) and weight (150 lbs). This places her in the normal range by BMI standards—just an observation, as BMI isn’t a definitive indicator of health or lifestyle.

Ethnicity: White
Hair Color: Brown
Eye Color: Brown
Scar or Distinctive Characteristic: None noted
Clothing and Accessories: No specific details were provided in the RCMP report

Transportation: No vehicle or specific transportation details noted. She was on a canoe trip, suggesting she was on foot or in a canoe before her disappearance.
Parents: Not listed in the source material

Clothing and Accessories
At the time of her disappearance on June 20th, 1974, no specific clothing or accessories were detailed in the RCMP report.

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Commentary and Research

By: Shane Lambert
Original Time of Writing: March 22nd, 2025

Has Marilyn Byskal Been Found?
As of the time of writing, Marilyn Byskal remains missing. Her case, now over 50 years old, is a cold one with little online buzz. There are no recent news updates or significant social media discussions breaking new ground.

Looking back at the journalism from the time of her disappearance, she received some minor attention in marginals in The Brandon Sun. There was also a larger article on July 2nd, 1974 in The Brandon Sun that mentioned she was a high school student on the cusp of graduation when she disappeared. Her disappearance turned the festivities around graduation into a more somber atmosphere. 

I think there were 12 people in her camping group, 10 students (including her) and 2 teachers. Here are some bullet points from the long article from July 2nd, 1974:

  • She went to the river when she woke up but returned to her tent (her toiletries and toothbrush were found back in her tent).
  • One important point is that the Grass River was only 2-3 feet deep at the point where students accessed the river. It was the speed of the river that was considered to be the risk. Aside from the journalism, I will later suggest that the temperature of the river would be a major risk as well.
  • Two students and a teacher had to paddle 20 miles to alert the RCMP, suggesting that it would have been tough for them, the police, to start an immediate search.

There seemed to be an extensive search. I would say that the search might have been longer than what Canada's Missing described with an estimated 12+ days, including the group she was with and the RCMP's search.



What stands out in her case is the lack of witnesses and the inconclusive search. The Grass River’s fast currents could easily sweep someone away.

Did she fall in, or did something else happen that morning? The group’s assumption of a river accident feels plausible, yet without evidence, it’s just a theory. An alternative theory might be that she fell prey to a campground stalker.

If she did fall in the river, then it's not surprising at all that the search didn't turn her up. Thomas William Richey is pretty much known to have fallen in a river and he has been gone for a lot longer than Marilyn. The same goes with Duane Ludwig Winget.

If fast-flowing water takes you away, then you might end up buried in sediment, either ashore or underneath the water, and that's a really good hiding spot -- for decades and decades and decades.

Beyond the River: Other Possibilities? It seems they were considered.

My research into this case suggests that some entertained the possibility that she survived her disappearance event. Consider the following classified advertisement from the summer of 1975, published about 13 months after she was last seen.

August 2nd, 1975. The Vancouver Sun.

The mention of Erickson, Manitoba, where our missing person was from, suggests enough to me that we are talking about the same case. The classified ad is likely nothing more than the family's unwillingness to accept that Marilyn had died.

You see this a lot with missing-person cases: the lack of a body means no conclusive death. That allows family members to keep hope alive for survival.

Yet, if two students and a teacher had to canoe 20 miles to find the RCMP, then I'm not sure how Marilyn woke up one morning and then just disappeared to Vancouver from northern Manitoba after doing little more than brushing her teeth.

I did find a marriage involving a same-name match in Surrey in May 1975 but the wedding picture looks very different. I won't republish the image but it's in the May 8th, 1975 edition of the The Surrey Leader. I wonder if this same-name match to the area, which looks like a different person entirely, spawned an effort for the family to look there and that's all the classified ad is about.

Marilyn Byskal Disappearance Theories

The best alternative theory to drowning would be a campground stalker, in my opinion. The missing person was someone who I think would have a general appeal for physical attractiveness to the male population. She was young and athletic.

September 8th, 2009. The Toronto Star.

There have been lots of campground stalkers in the past. I would think a high school field trip to the backwoods involving 10 girls/women would be a magnet for a campground stalker. Half of the horror movies from the 1970s and 1980s loosely resembled that plot.

Tragic Cases of Young Women Attacked at Campgrounds

The following table details cases where young women were targeted at campgrounds, highlighting the dangers of remote outdoor settings.

Date Location Victims
June 13, 1977 Camp Scott, Mayes County, Oklahoma, USA Lori Lee Farmer (8), Doris Denise Milner (10), Michelle Heather Guse (9)
May 24, 1996 Shenandoah National Park, Virginia, USA Julianne "Julie" Williams (24), Laura "Lollie" Winans (26)
May 1992 Beverly Beach State Park, Oregon, USA Melissa Sanders (20), Sheila Swanson (19)


It's a matter that might warrant mild interest. However, I do not believe that she fell victim to a campground stalker.

Campground Stalker Theory: Not Likely

Firstly, a 7 AM abduction time is weird in my opinion. If she went on a bathroom trip from her tent at 3AM and disappeared at that time, then I would be more partial to a campground stalker theory. The situation as it was, I would file "campground stalker" into the "very improbable" category. Especially since there is no hint of evidence of an abduction in anything that I read.

As for the disappearance involving the river sweeping her away. There isn't much I found weird at all. The theory made pretty good sense. If she did go into the water and drowned there, then it's not at all surprising that she has not been found. 

The only thing I found a bit weird was there was no description of a call for help and simply falling into a river is a little strange. If someone falls into a river from shore, I would think there would be moments where the person struggles but stays above water and these moments would involve a call for help. However, a quick submersion is possible as well, coupled with shock.

As for falling into the river without anyone pushing you, it is hard to picture. But there are all kinds of tripping hazards in natural settings, like rocks and roots. I would not be surprised if she went for a walk and fell in a little ways away from the camp.

Although it was June 20th, northern Manitoba has a subarctic climate. At that time of year, falling into water in the area would produce immediate shock. Even if the air was comfortable, bodies of water in the area would still be extremely uncomfortable due to snowmelt. I doubt the river water would be warmer than 10C.

What does all this mean? If Marilyn Byskal did fall into the Grass River, you or I won't generate a clue in finding her. So in the final analysis, I simply don't think researchers should work on this case unless they can link a known abductor to the area at the time of the disappearance. But going down that rabbit hole could be a colossal waste of time.

Debra Kay Manial -- Missing Since December 1982

Missing Person: Debra Kay Manial



Details from a government source (might be paraphrased): Manial was last seen at the Indersol Tree farm in Dobbins with a group of friends cutting down Christmas trees. When the group was getting ready to leave Manial walked in front of the group, never to be seen again.
Last contact: December 19th, 1982 (Sunday); went missing in the morning, reported missing at noon. I see some sources stating that she went missing on December 12th. However, NamUs says December 19th. Also, the journalism starts on Monday, December 20th and states she went missing on Sunday, presumably the most-recent Sunday or else they would specify.
Last location: Dobbins, California. Specifically, Yuba River area, east of Dobbins. Near the Indersol Tree Farm, according to NamUs. This tree farm was called Ingersol Tree Farm from other sources. Also, journalism mentioned a place called Bullards Bar dam.
Age when Debra Kay Manial disappeared: 29 according to NamUs, 28 years old according to early journalism. However, 29 appeared to be the correct age.
Birthdate: December 6th, 1953 (source: DoeNetwork)

The Sacramento Bee. December 21st, 1982.
The age in the journalism appears to be wrong.
She recently turned 29 as of her disappearance date.

Sex: Female
Height in inches: 64
Weight in pounds (lbs): 140
Ethnicity: White/Caucasian
Hair color: Brown
Eye Color: Brown
Scar or distinctive characteristic: Scar on top of one of her thumb knuckles. Horizontal appendectomy scar.
Link to government source: https://www.namus.gov/MissingPersons/Case#/126821?nav

BMI means body mass index. It is meant to describe someone's healthy body weight relative to their height. It is food for thought as to how someone may have looked. However, it is meant as a guide only and does not account for all body types. 

Debra Kay Manial had a BMI of 24.03. Debra Kay Manial was at a HEALTHY WEIGHT by BMI standards at the time of her disappearance.

Clothing: Lots of clothing and accessories to note, as snipped from NamUs below.



Commentary and Research

By: Shane Lambert 

Has Debra Kay Manial been found?

I researched the missing person's case of Debra Kay Manial tonight. From what I gathered, she and eight friends (nine people total) went out on a Sunday morning to find a Christmas tree. On their return to their vehicle, Debra walked ahead of the group for some reason. She has not been seen since and was reported missing at about noon on that day. The way it read, she must have been last seen sometime between 11am and noon on December 19th, 1982.

There was a large search for her. However, there were both rain and snow storms in the time frame that followed. The area was considered dangerous for walking, which brings into play the chance that she slipped down a slope. 

Debra Manial was not originally from the Sacramento area. That would suggest that she wasn't too familiar with the terrain. I think she was from Michigan as per the clipping below from The Saginaw News. There was an obituary for her mother in 2014 in The Saginaw News. In this obituary, it's clear that the family considers Debra to be deceased (May 15th, 2014, page 6).



I did feel like that may have happened to her and then the treacherous weather impeded the search efforts. However, other scenarios are possible, like abduction or self harm. The search for her was called off on December 28th, 1982 as it was thought that she must have perished by then, if she was in the rugged area.

What stood out in this case was simply that she walked ahead alone. I found no statements as to why she did that. What also stood out is the amount of detailed information there is of her clothing. Amateurs working on this case could try to match her clothing/accessories to clothing/accessories found on Jane Does in the area.

A couple of contradictions that I noted was that she was described as 28 years old in the journalism, while NamUs lists her as 29. Also, the tree farm was called "Ingersol Tree Farm" in journalism, not Indersol Tree Farm as per NamUs.


This case reminded me of some other missing person's cases on this website. There have been quite a few people who have gone missing while out with a group in a natural setting. In the cases I am thinking of, the person separated from the group and was then lost.

Trenny Gibson went missing while on a school hike. She separated from the group for a short time and has not been seen since. I looked at missing trail hikers quite extensively back in a 2021 article.

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