author
b. 1860
Best known for a detailed early-20th-century study of handwriting analysis, this writer explored how experts could spot forgeries and judge disputed documents. His work sits at the crossroads of true crime, law, and the history of forensic science.

by Jerome Buell Lavay
Born in 1860, Jerome Buell Lavay is chiefly remembered for Disputed Handwriting, first published in 1909. The book presents a wide-ranging look at handwriting examination, forgery detection, and the way disputed documents were studied in courts, banks, and business life.
From the surviving records available online, Lavay appears in library and public-domain catalogs mainly through this book, which has stayed in circulation through archives and later reprints. Its lasting interest comes from the way it captures an earlier moment in forensic thinking, when careful visual comparison of signatures and penmanship was treated as an important practical skill.
Reliable biographical details about his personal life are scarce in the sources I could confirm here, so it is safest to describe him as an American author associated with handwriting analysis and document examination rather than make broader claims. No suitable verified portrait could be confirmed from the pages reviewed.