A photograph of Billy Lillie dressed in a white outfit sitting on a stool. He is holding a toy ball in his hands.

A photograph of Billy Lillie dressed in a white outfit sitting on a black stool.

A photograph of Billy Lillie as a baby on a baby quilt on the front porch of the mansion. May Lillie has written on the back of the photograph,"Sonny."

A photograph of Billy Lillie sitting on a white baby quilt feeding chickens.

A photograph of the Pawnee Bill Mansion shortly after construction was complete.

A photograph of a crowd in front of a bank in Myton, Utah. There is a note on the back addressed to Lena Greene. The note says "Mylon, Apr 2 - Here we are at last, are just catching so far. I think I shall like it very much when I get settled but do miss the Ranch and Will and Blanche. If they were here, I would be happy. I will write a letter how and feeling preculture. Lovingly, Whiltis."

A photograph of Billy Lillie dressed in a white outfit sitting on a wire chair turned backwards. He grips the back in his hands and looks towards the right.

A photograph of Buffalo Bill standing in front of a large oven. There are three men behind him. He is wearing a dark suit and cowboy hat.

A photograph of Buffalo Bill surveying an oil well site. He is standing in a dark suit and cowboy hat. Next to him is a very large cactus.

Photograph of bison at Corbin's Park in Newport, New Hampshire. The front has written "Best Regards from Corbin's Park; Ernest Putney, Newport, N.H." At the bottom is written "come up and see us."

A photograph of five people gathered around a rustic well. Pawnee Bill is the man on the far left. All other individuals are unknown. The woman in the group is the same as seen in other photographs at the same time.

A photograph of a man wearing white wooly chaps, a large bandana, cowboy hat, and holding a large lasso in his hands. He is posing in front of the southwestern corner of the log cabin on the Pawnee Bill Ranch.

A photograph of May Lillie holding an infant Billy Lillie. She is seated in an ornate chair. He is dressed in a long white gown.

A photograph of May Lillie and Pawnee Bill standing at the side porch of their mansion in Pawnee. She is wearing a checked pattern work dress and he is in a tan suit with tan cowboy hat. She stands to his left with her hands clasped in front of her and he is to the right, pointing off into the distance.

A photograph of May Lillie and Pawnee Bill posing next to their side porch at their mansion in Pawnee. She is wearing a checked pattern work dress and he is in a tan suit with a tan cowboy hat. She is standing on the right, hands on her hips, looking to the camera. He is seated on sandstone, looking towards the right.

A photograph of three men and two women sitting on the porch of the Pawnee Bill mansion. May Lillie is the 2nd woman on the right. Pawnee Bill is beside her in a chair. The other three people are currently unknown.

A photograph of May Lillie, right, and an unknown man and woman. They are seated on the side porch of Pawnee Bill's mansion.

A photograph of a movie still from May Lillie: Queen of the Buffalo Ranch. The photograph features a large herd of bison grazing on an open prairie.

A photograph of May Lillie feeding livestock in front of the ranch's mud lodge. She is posed next to a calf, holding a metal bucket. There are chickens, ducks, geese, and turkeys roaming the grounds.

A photograph of May Lillie, seated, with an infant Billy Lillie in her arms. Gordon W. Lillie looks over her shoulder at the baby.

A photograph of May Lillie (right), an unknown woman (center), and Pawnee Bill (left). They are posing on the cannon that was on the front lawn of the Pawnee Bill Mansion.

A photograph of a group of eight Native American men butchering a bison.

A photograph of May Lillie in western costume posing with a wooden chair in front of the log cabin. The other buildings on the ranch can be seen in the background.

A photograph of a movie still from Pawnee Bill: The Frontier Detective. The photograph features Pawnee Bill holding a man at gunpoint as three other men look on. Many of the items seen as props in the photograph are furniture items from the Pawnee Bill mansion that are still in the collection today.