Twenty-five years later, the grief of Sept. 11 remains with Salvation Army responder Ken Tregellas, and so does his conviction that his experience was worth the sacrifice.

“My kids had asked me over the years, ‘Dad, knowing you’d get cancer, would you still have served?’ And I told them, ‘I wouldn’t have changed a thing. It was an honor,’” he said.

During this year’s anniversary, Tregellas is looking back on the decision that took him from his family in Wisconsin to Ground Zero, where he spent months caring for people searching for answers about their loved ones.

It started as a typical Tuesday morning. Tregellas was getting his twins ready for…

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