Whenever there is a parade “the grannies show up”, David Simmons, an Episcopal Priest in Waukesha at St Matthias Episcopal Church told The Washington Post. He characterised the women as “a staple” at such events.

“It’s pretty adorable, honestly, it’s elderly women who are really dancing hard, and it’s something that people look forward to in the parade,” he said.

A statement by the group said: “The Milwaukee Dancing Grannies are devastated by this terrible tragedy with loss of life and injuries in the Waukesha Christmas parade.

“Our group was doing what they loved, performing in front of crowds in a parade putting smiles on faces of all ages, filling them with joy and happiness. While performing the grannies enjoyed hearing the crowds cheers and applause which certainly brought smiles to their faces and warmed their hearts.

“Those who died were extremely passionate Grannies. Their eyes gleamed…..joy of being a Grannie. They were the glue….held us together.

“Our hearts are heavy at this most difficult time, as more information and updates become available it will be posted . Please keep them their families, friends, the Milwaukee Dancing Grannies and everyone who lives have forever changed in your thoughts and prayers.”

Tributes have begun poring into the group’s Facebook page: “You truly are a highlight of every parade, you make everyone smile and you remind us to never stop doing what you love. I’m so so sorry for your losses,” wrote one user.

“Praying for your Grannies and all affected by this tragedy. May God wrap his arms around all of you at this time,” wrote another.