1854/May 10 - William N. Lannon opens a post office, of sorts, on his Lannon Springs farm.
1864/June 11: William Lannon submits an application for a postal station at his farmhouse under the name Lannon Springs. This post office was about 3/4 of a mile west of the present post office (Lannon and Good Hope Rds.) on Hwy 74.
1873 - Lannon Spring's post office is discontinued and subscribers are told to pick up their mail in Sussex or Duplainville. See 1878
1878 - The "Atlas of Wisconsin, 1878", still shows a Lannon Springs post office.

1880/abt - Michael Keating, Sec. 30; P. O. Lannon Springs is postmaster of same.
1890/June 18: Olavius Olsen submits an application for a post office first to be named "Hadfield", crossed out and "Stone City" added, to be crossed out with "Lannon" as the name finally submitted. Application was approved on August 2nd.
1945/Apr. - Elizabeth Flanagan, wife of Lannon postmaster and grocery store owner, died after a couple days of illness.
1966 - at some earlier time, the Lannon Fire Dept bought the building, where the present Post Office is today, but they couldn't make the mortgage payments, so Postmaster Keith Gissal and his wife stepped in and purchased the building and moved the post office into it. For a while, the post office was even located next door to The Dugout non Lannon Rd (now a small apartment building).
1970/Apr. - The U.S. Postal Service was seeking a new post office in Lannon. They will be asking for proposals.
1990/1/2 - Lannon plans celebration of 100th Anniversary of its' Post Office founding and 60 years since it was incorporated as a village. John Eldridge is the Postmaster; he took over for Keith Gissal in 1984.

Retrospect: News clippings convey flavor of Olde Lannon

By FRED KELLER

Posted: Mar. 26, 2008, Sussex Sun

As the 1928-29 years rolled in, Lannon was taken up with the effort to incorporate as a village. After a few false starts, it finally succeeded in 1930.

Here are some newspaper clippings (paraphrased) I found from that era.

Dec. 28, 1928

In what might have been a very serious incident at most any other time of the day, about midnight last Thursday night the boiler at the Lannon Garage (today the Lannon Post Office building) blew up. The explosion was so loud it could be heard for miles around. Many fast-asleep villagers thought a dynamite shack at one of the local quarries had blown up.

In fact, though, the proprietor, Mr. Felton, worked late that night and left at 11 p.m. The last thing he did was attend to the fire keeping the boilers going that heated the garage.

Less than an hour later, the heating plant was in ruins and the building shattered. A hole had been torn in the concrete floor, the northwest corner of the building had a gaping hole in it so large a car could have used it for an exit, and the concrete block walls were pushed out of plumb, in some cases by two feet.

This sequence of disasters was investigated by the Lannon Volunteer Fire Co., which discovered that a previous boiler repair had not been properly done or inspected.

A Lannon Fire Co. member said that if people had been present at the explosion, "The result would certainly have been disastrous."

July 4, 1929

The Lannon Fire Co. held a Fourth of July picnic and dance at Maas Grove. A big open-air pavilion was erected for refreshments, the Nettesheim Play Boys band and dancers. The funds raised will pay for a new 500-gallon Presch pumper fire truck.

Nov. 9, 1928

The proprietor of what was then the Willow Springs Roadhouse at Whiskey Corners (Town Line and Mill roads), Edward Wildish suffered wounds to his leg and chest. The chest wound was just above his heart, but the police report said a rib bone bent the knife blade upward, saving his life.

The assailant, railroad section hand Charles Tisch, went to the roadhouse Sunday evening and got into an argument with Wildish, who ordered him to leave. Police took Tisch to the Waukesha County Jail, where he was charged with assault with intent to do great bodily harm.

Sept. 6, 1929

A combination of circumstances, misunderstandings, bad telephone communication, people passing half-accurate information on to others and mangling of the facts in the process erupted in Lannon this past week.

It all began when the driver of a little Ford coupe, possibly under the influence tried to turn his car around in front of the August Gius home, only to end up with his wheels in a ditch. He then went to the Gius home for help. Mrs. Gius called the Lannon garage at 11:15 p.m., but no one answered . She then called the Louis Gissal tavern. It was a bad connection, however, and Gissal misinterpreted the message, figuring it was a car accident and possibly a fire.

Gissal then raced over to the Main Street fire station and rang the fire bell, alerting the whole village. The firefighters responded, and dashed off to the Gius home, only to find the coupe with its wheels in the ditch.

The incident attracted a lot of onlookers, who nearly lifted the car onto firm ground. So many people drove to the scene, including some late-arriving firefighters, that they created a traffic jam that took an hour to clear.

When the little coupe finally returned to the road, its starter would not engage.

Knowing Lannon's old-time firefighters, I figure that incident gave them a lot to talk about after they got back to the fire station and the village's many taverns. (Though Prohibition was still the law of the land, Lannon prided itself in those vendors of "snake-bite remedies.")