Are all or most Dogman reports recent (or recently retold)?
Not all—and “recently reported” versus “recently retold” is a very important distinction here.
After looking at the historical record, I would divide Dogman/upright-canine reports into several layers.
1. The specifically named “Michigan Dogman” is overwhelmingly modern
This is the weakest part of the alleged historical continuity.
The familiar Michigan chronology—1887, 1937, 1950s, 1967, 1977, 1987, etc.—looks impressively old when presented as a continuous timeline. But the crucial problem is that the pre-1987 Michigan cases don't have the kind of contemporary documentation one would want. The famous 1887 story, in particular, has not turned up in a contemporary newspaper or other independent source; it appears in the form in which we know it through the mythology surrounding Steve Cook's 1987 song.
So I would not currently regard the standard 1887→1937→1967→1987 Michigan chronology as an established historical record.
And the particularly neat pattern of years ending in 7 is even more suspect, because that was explicitly built into Cook's 1987 The Legend.
2. But reports of similar creatures definitely predate the Internet
This is where I would modify the overly skeptical conclusion.
The Beast of Bray Road is a good example. Linda Godfrey's first newspaper investigation was published in December 1991, and she subsequently said that witnesses came forward with reports going back as much as ten years, i.e. to roughly 1981. She also recorded a possibly related 1936 incident in Jefferson County, Wisconsin.
More importantly, the early Bray Road accounts weren't simply copies of the standardized modern Dogman. As we just discussed, they included:
- large quadrupedal animals;
- animals sitting/kneeling;
- something that stood upright;
- something that apparently alternated between quadrupedal and bipedal movement;
- apparently bipedal creatures.
That makes the early Wisconsin phenomenon considerably more interesting historically than simply saying, "People started seeing Dogmen after the Michigan story."
3. There are older traditions—but they're not necessarily “Dogman”
If we broaden the question from “Dogman” to “large anomalous canine / humanoid canine”, the historical record gets much older.
There are longstanding traditions of:
- werewolves;
- black dogs;
- wild men;
- dog-headed humans/cynocephali;
- supernatural canine guardians;
- human-animal transformations.
But I would be very cautious about taking an old story about a werewolf or black dog and labeling it a Dogman sighting. That's retrospective classification, not historical evidence.
4. The really interesting period is roughly 1980–1995
This may be the most revealing period.
You have:
pre-1987:
some alleged upright-canine encounters, but relatively little well-preserved documentation.
1987:
Steve Cook creates the Michigan Dogman as a fictional radio legend. Listeners then begin calling him with alleged experiences, including experiences they say occurred before the broadcast.
1989–1991:
the Bray Road reports occur and are investigated contemporaneously by Linda Godfrey and Walworth County authorities. Godfrey's original 1991 reporting provides an actual paper trail.
1990s onward:
the Michigan Dogman, Beast of Bray Road, werewolves and other upright-canid reports increasingly become merged into one broad “Dogman” phenomenon.
That last stage is important. Once the Internet, books, television programs and paranormal culture start using Dogman as an umbrella term, older reports that originally described an enormous wolf, hairy humanoid, werewolf, etc., can retrospectively become “Dogman encounters.”
So are most reports recent?
If by “Dogman” you mean reports explicitly using that modern concept: yes, overwhelmingly.
If you mean reports of strange large canine-like beings, including bipedal or partly bipedal ones: no. There is a much older and broader folklore/reporting tradition.
And there's a third category that I think is particularly interesting:
Old reports that were only recognized as “Dogman” retrospectively.
Those deserve to be treated separately rather than automatically accepted or rejected.
The Bray Road material is particularly valuable because we have contemporary 1991 investigation, rather than somebody in 2010 saying, "My grandfather saw a Dogman in 1936." Godfrey says the 1991 article itself prompted people to come forward with older experiences, but that means we still have to distinguish the date of the alleged experience from the date it entered the documentary record.
So I think your instinct is right: the historical question isn't simply “Did anyone see Dogman before 1987?” but “When did reports of anomalous canine humanoids actually begin, and how much of the apparent antiquity is retrospective relabeling?”
That is a much more interesting question—and one where the evidence is surprisingly messy.