The tombstones at the Haunted Mansion showcase clever sayings, rhymes and play-on-words that really catch guests’ attention as they make their way into the attraction.

In this video, shared by Walt Disney Imagineering, we hear how many of these tombstones pay tribute to famous Disney Legends and Imagineers who helped create the attraction to life years ago. For example, one headstone’s reference to “Master Gracey” refers to Imagineer Yale Gracey, a special effects extraordinaire who brought the spirits of the Haunted Mansion to life, as well as “Grandpa Marc,” aka Marc Davis, who was the artist behind the stretching portraits. Other references include “Haunting Harriet” Harriet Burns, WED Enterprises’ first female employee who created models for the attraction, “Brother Claude” or Claude Coats, who developed the mansion’s interior and more.

Watch as Imagineers Daniel Joseph and Stacy Shoff offer up the details in the video above.

Want to learn more secrets of the Haunted Mansion? Check out the other videos in this series.

• All in the Details: ‘Happy Hints’ Hidden at The Haunted Mansion
• All in the Details: Myths & Legends of The Haunted Mansion