More than half of Edison’s 1,093 patents came from this one lab in New Jersey

Half Edison’s patents started here

Thomas Edison built a lot of things in his life, but the laboratory he opened in 1887 in West Orange, New Jersey, might be the most important one.

He designed it ten times larger than his famous Menlo Park facility and filled it with more than a dozen buildings dedicated to electricity, chemistry, motion pictures and metallurgy.

More than half of his 1,093 U.S. patents came from work done right here.

The lab and his family mansion sit about a half mile apart, and you can walk through both of them today.

He built the lab right after his second wedding

Edison married Mina Miller in 1886 and moved to West Orange the same year.

He had already made his name at Menlo Park with the phonograph and the incandescent light bulb, but he wanted something bigger.

Architect Henry Hudson Holly designed the new facility as a red-brick, factory-style main building with four smaller outbuildings around it.

Edison wanted to take an invention from idea to finished product under one roof, and he worked here for 44 years, right up until his death in 1931.

The three-story library still has his desk

The library is the room that stops you in your tracks.

It rises three stories and served as both a research hub for Edison’s employees and the inventor’s personal office. His desk, his awards and his personal items sit where he left them.

About 10,000 rare books line the shelves, all used for research. His second wife, Mina, placed a cot in the library for the nights he worked too late to come home.

You can still see it there.

Turtle shells and elephant hide fill the stockroom

The first floor of the main building holds the heavy machine shop and a stockroom Edison kept packed with every material his team might need. He refused to let experiments stall for lack of supplies.

The shelves hold standard tools and parts alongside oddities from around the world, including turtle shells and elephant hide.

Head upstairs to the second floor and you’ll find the precision machine shop, where workers built more delicate items. Edison bragged his team could build anything from a lady’s watch to a locomotive.

The chemistry lab opens for ranger-led tours

Across from the main building, separate labs handled chemistry and metallurgy.

Edison and his chemists used the chemistry lab to experiment on everything from phonograph record materials to rubber.

Right next door, the pattern shop gave carpenters space to build wooden models used to cast metal parts for his inventions.

You can peer into the interiors of these buildings on your own, and the chemistry lab opens periodically for ranger-led tours that take you inside for a closer look.

The first movie studio looked like a paddy wagon

Behind the laboratory complex sits a replica of the Black Maria, the world’s first building constructed solely for making motion pictures.

Edison’s team built the original in 1893 and covered it in tar paper, which earned it a nickname after the police paddy wagons of the era.

The original had a retractable roof to let in sunlight and sat on a turntable so the whole structure could rotate to follow the sun.

The National Park Service reopened the rebuilt replica in April 2024 with a replica film camera, replica Kinetoscope viewers and period costumes you can wear for photos.

Hear 2,400 rare Edison recordings for free online

The third floor of the main building holds the music room, where Edison spent decades improving the phonograph he first invented at Menlo Park in 1877.

West Orange is where he turned it into a commercial product.

The park preserves around 28,000 disc phonograph records, 11,000 cylinder records and thousands of other sound recordings.

In 2022, the park partnered with the University of California, Santa Barbara to release 2,400 rare Edison disc recordings online for free public listening.

The collection of phonographs in this room traces the early years of recorded sound.

Five million documents sit inside this park

Thomas Edison National Historical Park holds one of the largest museum collections in the entire National Park system.

The numbers are hard to wrap your head around: hundreds of thousands of artifacts, 5 million documents, roughly 10,000 rare books and about 60,000 historic photographs.

Thousands of laboratory notebooks document Edison’s research process in detail.

Many rooms still contain their original equipment and furnishings, left the way they were when Edison died.

You can explore all three floors of the main building through a self-guided audio tour available in multiple languages.

His assistant did the hands-on movie camera work

Edison’s team developed the Kinetograph, the motion picture camera, starting in 1888. His assistant William Kennedy Laurie Dickson handled much of the hands-on work.

They also created the Kinetoscope, a peep-hole viewing cabinet that became the first commercial way to watch short films.

The nickel-iron alkaline storage battery took about a decade of intense experimentation and came out lighter and more durable than the lead-acid batteries of the time.

Edison also earned 49 cement-related patents here, and a poured concrete garage on his estate, built around 1910, still stands today.

The 29-room mansion was bought with stolen money first

About a half mile from the lab, Glenmont is a 29-room Queen Anne mansion on roughly 15 acres inside Llewellyn Park.

The original owner, Henry Pedder, built the home between 1880 and 1882 with 23 rooms, but he had embezzled the money to pay for it.

The estate went up in a distress sale, and Edison bought it fully furnished in 1886 for $125,000. He later expanded it to 29 rooms.

The Eastlake style interior remains intact, and the grounds include gardens, a greenhouse, a barn and a concrete garage that still holds some of the family’s automobiles.

You need a pass to enter this 1850s gated community

Glenmont sits inside Llewellyn Park, widely considered the country’s first planned residential community. Llewellyn Solomon Haskell founded it in the 1850s, and it still operates as a private, gated neighborhood today.

The 425-acre community holds 175 homes connected by winding paths, ornamental trees and landscaping in the romantic style of New York’s Central Park.

You’ll need a pass from the laboratory visitor center to get in. Thomas and Mina Edison are buried together on the Glenmont grounds.

Their son Charles Edison later served as Secretary of the Navy and Governor of New Jersey.

Give yourself three hours just for the lab

Start at the laboratory complex visitor center on Main Street, where you can watch an orientation video and pick up an audio tour.

The lab alone takes about three hours with the audio tour, and Glenmont adds another hour or more.

Ranger-led tours of the chemistry lab and the mansion go deeper, with rangers sharing stories about Edison and his team of assistants, known as the “Muckers.”

Free parking sits in a lot across the street from the laboratory complex.

Explore Thomas Edison National Historical Park in New Jersey

You can walk through the actual rooms where Edison and his team developed the motion picture camera, improved the phonograph and created the alkaline storage battery.

Thomas Edison National Historical Park is at 211 Main St. in West Orange, New Jersey. The park is open Wednesday through Sunday, 10 a.m. to 4 p.m. Admission is free.

Ranger-led tours of Glenmont and the chemistry lab run on select days, so check the official website before you go.

This article was created with AI assistance and human editing.

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