On the popular children's TV show "Sesame Street," there is a song that asks kids to pick out which of four items does not belong. It might be three pieces of silverware and a clock or three hand tools and a shoe, accompanied by a catchy ditty.

There's no singing Cookie Monster for the following question, but which of these things — in this case, they're people — is not like the others?

• Inventor Thomas Edison
• Suffragist Susan B. Anthony
• Abolitionist Frederick Douglass
• Daisy Williams, daughter of Sweet Briar College founder Indiana Fletcher Williams

At first glance, the choice seems obvious, but in fact they all belong in a new exhibit, "Centennial Exploration," opening this month in Philadelphia. Beginning Oct. 18, Daisy Williams and some of her belongings will be featured at the Please Touch Museum, the children's museum of Philadelphia.

Daisy at about the age she was when she attended the expo.Daisy joins Edison, Anthony and Douglass as a sample of the millions of people who attended the Centennial Exposition, a World's Fair that 8- or 9-year-old Daisy attended with her parents in 1876.

At the expo, Daisy — one of 9 million visitors over a six-month period — was introduced to the modern marvels of the day, including the telephone, the typewriter, the concept of kindergarten, the stereograph and other things. She would have wandered the 285-acre fair, visiting more than 250 pavilions and countless exhibits.

In operation since 1976, the Please Touch Museum moved this fall to a new location — Memorial Hall. Memorial Hall was one of 250 buildings built specifically for the Centennial Exposition, where it served as an art museum. Today, it is one of only two structures remaining from the expo.

Daisy brought this bracelet which spells out "Centennial" home from the 1876 Centennial Exposition.In honor of the move, the museum has launched a permanent exhibit dedicated to the expo. Located on the ground floor of the museum, the heart of the exhibit is a 20- by 30-foot model of the Centennial Expo. Surrounding the model are artifacts and an area Stacey Swigart, curator of collections at the Please Touch Museum, likes to call "trunks and suitcases."

"It features some of the people that came to the fair," she said. "We picked a few famous and not-so-famous people. ... We've written a mini biography about each of them and feature some of their objects. You'll feel like you sort of arrived at the fair, surrounded by your trunks and suitcases, and these are some of the people that you might have met."

On long-term loan from the Sweet Briar Museum, Daisy's things include a steamer trunk; a red walking suit and jacket with matching straw bonnet; a pair of boots; several dolls; a set of Japanese lacquerware; an 1876 copy of Hans Christian Andersen stories; a jacket, cape and skirt with a Greek key design; two teacups; and a bracelet with charms spelling out "Centennial."

This red bonnet, along with a matching walking suit and jacket, will be on display at the Please Touch Museum.Some of the items — the bracelet, lacquerware, teacups and two Japanese dolls with a toy rickshaw — were purchased at the Centennial Exposition.

"Japanamania" was all the rage at the expo, Sweet Briar Museum director Christian Carr said. "Daisy's parents fell victim to this. [It was] Japan's first presence at a World's Fair. The Williams family carted home crates of this stuff."

Daisy's steamer trunk also is of interest, Carr said, as she was "very particular" about it. She carted it back and forth to school in New York City, wrote about it in her diary, and likely took it to the expo.

In all, Sweet Briar has a large collection of things belonging to Daisy, who died of a lung ailment at age 16. The clothing items alone number more than 300. "I don't think Indiana [Fletcher Williams] ever threw anything away that belonged to her, which we're grateful for," Carr said.

Swigart located the Daisy items a few years ago after making an online plea to museum professionals for artifacts from the 1876 Centennial Exposition, particularly children's items.

"I got a lot of responses from people telling of which places to look in Philadelphia, which I already had," she said. "Then I had this wonderful e-mail from Christian [Carr] who told me a little bit about Daisy, and I said, 'I love you.' She was the only one who came through with stuff related to a child."

Swigart said the museum is borrowing Daisy's things for a year, after which she hopes the College will renew the loan. "Daisy's going to be sort of a permanent fixture for the Centennial [exhibit]," she said.

As for Carr, she's happy to oblige. "Daisy is such an icon at Sweet Briar and [this is] a chance to share a little bit of the Sweet Briar College story with the rest of the world," she said. "Who knows? Perhaps some little girls who look at Daisy in the display will find themselves at Sweet Briar College in the future after that first contact with her and becoming intrigued by her story."