Diners at the Gala at Round Hill shared their appetizers and wine with two special guests: the famed colonel and his wife, who looked like they were ready for a night out in the Roaring Twenties.

Of course, this wasn’t the real Colonel Ned Green and wife Mabel, but two actors from Your Theatre in New Bedford. Lawrence Houbre and Suzanne Houbre enjoyed hobnobbing as the historical pair as part of the Friends of the Elderly’s semi-annual fundraiser.

The gala, which is held every other year, benefits the nonprofit organization. The group, which is run completely by volunteers, raises money to support the Dartmouth Council on Aging. It is held in the historic Green Mansion at Round Hill.

This year, the proceeds from the Gala will go to their latest project: $150,000 of improvements to the entrance to the Council on Aging.

“The community always comes to our aid to benefit our seniors,” said Maria Connor, the president of the Dartmouth Friends of the Elderly. “We are very happy that people continue to support us.”

Colonel and Mabel Green mingled throughout the night. The couple built the mansion, along with the former radio station where appetizers were served, in 1919.

“Remember the story about the blimp?” Mabel asked the Colonel.

Laughing, Colonel Green recounted a story about flying his blimp past a neighbor’s house and waving at her through her bathroom window, much to her dismay.

The Greens arrived in Dartmouth on their yacht, called the “United States,” which was the largest in the world at the time.

They lived on the yacht while the mansion was being built, and kept the blimp parked in the front yard, although it would sometimes escape its tethers.

There were many contemporary guests in attendance as well.

“I’m always at the Senior Center,” said Carol Braga. “I think it’s wonderful.”

The Friends of the Elderly are still accepting donations to fund the entryway project along with their other work. Checks made out to Dartmouth Friends of the Elderly can be mailed to 628 Dartmouth St., Dartmouth, MA, 02748.