
どうも最近、家系史の研究として長兄の「本家」に残されていた遺物・文書類のデジタル化、アーカイブ化に取り組んできて「筆跡」という情報源に気付かされてきている。
歴史研究としては、家の伝承や公的記録の掘り起こし運命の生々流転を追うのが基本。墓石検証も並行するし過去帳や幕末明治期の最初期戸籍謄本なども基本資料になる。一方で画像は明治以降の人間にしか残らないので、それ以前の確証は得られない。しかし先祖が書き記した痕跡として、書が残っているケースがある。
わが家系では1815年に6代前の三木寛蔵先祖が書き記してくれた「原氏由来の事」巻物が最古で残されている。一方、既報のように1934年の祖父の葬儀に際しての父の「筆跡」とおぼしき記録が掘り起こされた。
確実な父の肉筆はそのうちに書簡記録などから兄弟間から出てくると思っているが、親不孝でわたしは手許に持っていない。なのでいまのところこちらが候補。で、既報のように父との肉親としての肌感覚が蘇ってきたと感じたことで筆跡には強い「コミュニケーション要素」があると気付かされた次第。
であればデジタル化の利点を活かし、DNAの流れでは119年間の時間差があるこのふたりの筆跡を対比できるのではと対比写真画像として生成させてみた。上の写真。
父の筆跡、さらには6代前の先祖の墨跡についても、伝承やわたしの個人的感覚が根拠なのでまだ不完全だけれど、この手段はひとつの「探索手段」ではないかと思い至っている。
AIの発展で、むしろこういう手書き文字の「人間性と深くかかわる」独自性が大きな領域として脚光を浴びつつあると言われる。調べてみると、AI的な解析には不向きな領域とわかる。AIからの参考情報は以下。
〜印刷文字が記号化された情報であるのに対し、手書き文字は筆圧、速度、運筆の揺らぎ、余白の取り方など「その文字を書いた瞬間のその人の肉体性・心理状態・生命の呼吸」がそのまま定着した純度の高いアナログな人間文化領域です。子であるあなたがその「くせ字」を目にした瞬間に単なる言葉の意味を超え、お父様の内面性や生前の気配に直接触れさせられるような感覚を覚えるのは、まさに手書き文字が持つ「生体情報」の力です。〜 ふーむ。
というような前段に踏まえ「比較対照」に心意を凝らして見つめてきています。
●お知らせ
拙書「作家と住空間」幻冬舎から電子書籍で発刊
お求めはAmazonで。
https://amzn.asia/d/eUiv9yO

English version⬇
[Comparing the “Handwriting” of My Father and a Sixth-Generation Ancestor: A 119-Year DNA Time Gap]
Yesterday’s post explored the study of “characteristic handwriting,” even going as far as Wang Xizhi. This led me to realize that analyzing handwriting could also be beneficial for genealogical research. …
Lately, as part of my family history research, I’ve been working on digitizing and archiving artifacts and documents left behind at my eldest brother’s “main family home,” and in the process, I’ve come to realize the value of “handwriting” as a source of information.
In historical research, the basic approach is to unearth family traditions and public records to trace the vivid twists and turns of fate. I also verify gravestones in parallel, and family registers as well as the earliest copies of household registers from the late Edo and early Meiji periods serve as primary sources. On the other hand, since photographs only exist for people from the Meiji period onward, we cannot obtain definitive proof of events prior to that time. However, in some cases, written documents remain as traces left by our ancestors.
In my family lineage, the oldest surviving document is a scroll titled “The Origins of the Hara Clan,” written in 1815 by my sixth-generation ancestor, Miki Kanzo. Meanwhile, as previously reported, a record believed to be my father’s “handwriting” from my grandfather’s funeral in 1934 was unearthed.
I believe authentic examples of my father’s handwriting will eventually surface from correspondence or other records among his siblings, but—unfortunately—I do not have any in my possession. Therefore, for now, this serves as a candidate. As I mentioned earlier, the fact that this brought back a visceral sense of my close bond with my father made me realize that handwriting possesses a strong “element of communication.”
With that in mind, I decided to take advantage of the benefits of digitization and generate a side-by-side comparison of their handwriting—a pair separated by 119 years in the DNA lineage—as shown in the photo above.
While my understanding of my father’s handwriting—and even that of my ancestor six generations back—is still incomplete, relying solely on oral tradition and my personal intuition, I’ve come to believe this method could serve as a valuable “means of exploration.”
With the advancement of AI, it is said that the uniqueness of handwritten characters—which is “deeply connected to humanity”—is actually gaining prominence as a major field of study. Upon investigation, I found that this is an area ill-suited for AI-based analysis. The following is reference information from AI sources.
~While printed text is symbolic information, handwriting is a highly pure, analog realm of human culture in which “the physicality, psychological state, and vital breath of the person at the very moment they wrote the character”—as reflected in pen pressure, speed, fluctuations in stroke, and the use of white space—are directly captured. The moment you, as a child, see that “quirky handwriting,” you feel something that transcends the mere meaning of the words—a sensation of directly connecting with your father’s inner self and the presence he left behind. This is precisely the power of the “biometric information” inherent in handwriting. ~ Hmm.
Based on this introduction, I have been carefully examining the subject with a focus on “comparison and contrast.”
● Announcement
My book, *Writers and Living Spaces*, has been published as an e-book by Gentosha.
Available on Amazon.
Posted on 9月 20th, 2026 by 三木 奎吾
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