Lincoln Logs: a 1920 patent and a 1924 debut

By Rafe Calder

The toy has a patent date and a debut date, and the two do not line up neatly. That is not unusual for a toy that has been sold for most of a century.

What the patent says

Google Patents lists U.S. patent 1,351,086, “Toy-cabin construction,” in the name of John Lloyd Wright. It was filed on January 8, 1920 and granted on August 31, 1920. The description says the invention relates to the building of “diminutive log cabins and other like structures,” and that its point is an arrangement for assembling the parts “so as to produce a stable and realistic structure.”

The parts are “cylindric shaped members in the representation of logs,” in varied lengths. Each has “transversely formed notches” placed a short distance inwardly from its ends, in pairs on opposite sides, “cut rectangular in shape.” The notches interlock at the corners. The description we read does not state a material.

That is the whole mechanism: a round stick with two square bites out of it, near each end. Everything else about the toy follows from that cut.

What the museum says

The Strong National Museum of Play, which runs the National Toy Hall of Fame, gives a different year for the toy. Its entry says Lincoln Logs were introduced in 1924 and inducted into the Hall of Fame in 1999. It says the logs were notched at both ends so structures could withstand rough play, and that the name came from the childhood cabin of President Abraham Lincoln. The packaging, it says, showed a simple log cabin drawing and a small portrait of Lincoln, with the slogan “Interesting playthings typifying the spirit of America.”

It also describes marketing. Wright sold the toy on American frontier themes, and advertisements on the television programs Pioneer Playhouse and Davy Crockett produced a large sales increase in the early 1950s. The museum credits timing, a strong marketing hook and the frontier theme, and it says the toy was still sold more than 75 years after its debut.

Two dates for the start

The patent record gives 1920, and the Strong National Museum of Play gives 1924 for the toy’s introduction.

The hotel in Tokyo

Every account links the toy to Wright’s father, the architect Frank Lloyd Wright, and to the Imperial Hotel in Tokyo. They tell it differently.

The museum says the idea came as Wright watched workers build an earthquake-proof building in Japan, one of his father’s designs.
Artnet, an art-world news site, says he went to Japan with his father between 1916 and 1917 and got the idea from the hotel’s foundation, which it describes as built from interlocking wooden logs and meant to be earthquake-proof. It says the hotel survived the 1923 Great Kanto Earthquake, was demolished in 1968, and had its entrance and lobby rebuilt at the Meiji Mura museum in Nagoya.
Wikipedia says the toy’s design was based on the hotel’s architecture, whose foundation used interlocking log beams.

The Artnet article presents the link as fact and cites no source for it. The museum’s page, as we read it, does not mention logs in the foundation. The patent summary we read does not mention a hotel. We cannot confirm the foundation detail, and we do not repeat it as established. What the sources agree on is smaller: the inventor was in Japan with his father, and a Japanese earthquake-proof building was part of the family story.

Artnet also describes a dispute between Wright and his father over pay, after which he returned to the U.S. We leave it.

What the toy was made of

The patent does not name a material. Wikipedia says the sets were originally redwood, that the company introduced all-plastic sets in the 1970s and soon went back to real wood, and that the logs measure three quarters of an inch in diameter. That is a single source and an encyclopedia, so we flag it. The museum says nothing on materials.

What a collector could and could not tell

The sources give two usable facts: the patent number and its dates. They give no marks, stamps or box details that would date a particular set, and we found no collectors’ guide we could stand behind. So we do not offer one. Our reading: a patent date on a piece tells you the earliest it could have been made under that patent, not when it was made.

Questions a buyer would ask

Who invented Lincoln Logs? John Lloyd Wright, according to the patent and the museum. Are they named for a president? The museum says they are named after Abraham Lincoln’s childhood cabin. Are they still sold? The museum says they were still sold more than 75 years after the debut, and we say no more than that about today’s sets.

Dates in order

January 8, 1920: patent filed, according to Google Patents.
August 31, 1920: patent granted, according to Google Patents.
1924: introduced, according to the Strong museum.
Early 1950s: television advertising and a sales rise, according to the Strong museum.
\- 1999: Hall of Fame induction, according to the Strong museum.

What kind of sources these are

A patent record and a museum of play’s Hall of Fame entry.

What we left out

Prices, today’s manufacturer and its business history, where current sets are made, and the Hall of Fame’s other toys. We also left out the fate of the hotel beyond the one line above.