John David Bengtson, the meticulous film historian and "silent-film sleuth" who dedicated decades to uncovering the real-world locations of classic silent comedies, passed away on January 29, 2026, at the age of 68. Bengtson's groundbreaking work brought a new dimension to the appreciation of early cinema, allowing enthusiasts to connect with the physical landscapes that once served as backdrops for the iconic performances of Buster Keaton, Charlie Chaplin, and Harold Lloyd.

Born on November 17, 1957, in Bakersfield, California, Bengtson developed an early fascination with silent films. As a teenager, he delivered newspapers on a unicycle and began collecting Super 8 reels of silent movies, decorating his bedroom with posters of the era. This youthful passion laid the groundwork for a unique career that would blend his legal acumen with a historian's dedication to detail.

Bengtson pursued a robust academic path, earning his undergraduate degree from UC Berkeley in 1979, an MBA from the same institution in 1981, and a law degree from UCLA in 1983. He practiced as a business lawyer, often undertaking pro bono work for California Lawyers for the Arts, assisting artists with copyright matters. However, it was a moment in 1995, while watching a Buster Keaton film on LaserDisc, that truly ignited his life's calling. He recognized a San Francisco street in a chase scene, paused the film, and embarked on a quest to find the exact location.

This revelatory experience led Bengtson to meticulously research and document countless silent film locations across San Francisco, Los Angeles, and New York. His detective work, which involved comparing century-old film frames with modern photographs, maps, and archival materials, earned him the moniker "Sherlock Holmes of film locations" from film historian Leonard Maltin.

His findings culminated in a celebrated trilogy of books: "Silent Echoes: Discovering Early Hollywood Through the Films of Buster Keaton" (2000), "Silent Traces: Discovering Early Hollywood Through the Films of Charlie Chaplin" (2006), and "Silent Visions: Discovering Early Hollywood and New York Through the Films of Harold Lloyd" (2011). These works, praised for their meticulousness, allowed fans to visit the very spots where cinematic history was made.

Among his most significant discoveries was the identification of an unnamed Los Angeles alley used by Keaton, Chaplin, and Lloyd, which was officially recognized as Chaplin-Keaton-Lloyd Alley in 2013 and received a historic plaque in 2021. Bengtson shared his extensive knowledge through his popular website, Silent Locations, as well as podcasts, lectures, and walking tours, becoming a respected voice at institutions like the Academy of Motion Picture Arts and Sciences and the San Francisco Silent Film Festival.

Even as he battled the progressive ravages of ALS, Bengtson continued his work with unwavering dedication. His final project, "Laurel and Hardy, Year 3," was released in November 2025, with Bengtson employing an AI clone to narrate the final volume as his own voice weakened. His passing marks a profound loss to the historic record of the silent-film era, but his legacy of bringing the past to life through cinematic geography will undoubtedly endure.