OLEY TWP., Pa. -

A Berks County man who went missing during the Vietnam War was recognized for his service on Sunday.

Lt. Col Ralph Harold Angstadt was honored during a ceremony in Oley Township. Banners with his picture were displayed on Main Street in front of the firehouse.

The event was organized by the Berks County chapter of the POW/MIA Forget-Me-Nots.

"It's just really good to know that, in our hearts, we made a difference," said Diane Simmons. "He's over 84 years old now because he was career man, so where is he?" she asked.

Angstadt was declared missing in 1966 after his aircraft went down in water over Vietnam while on a rescue mission.

Simmons said she is in close contact with Angstadt's sister and said it has been hard for her and the rest of his family not knowing what happened to him.

"Does he have an earthly death now? He very much could be alive and being held against his will. We don't know. It's unanswered questions," Simmons said.

She said it's important for all generations to know about the struggles faced by families that don't know what happened to their loved ones and said honoring Angstadt is a way of keeping the conversation going and continuing to ask what happened.