Diana Lee Peckham, also known as Diana Elmore and called Diane, was 25 when she vanished from her Baroda, Michigan home on July 20, 1976. Her husband, Blair, last saw her before leaving for work that morning; when he returned the house was empty and Diana was gone. Her purse and keys were left behind, suggesting she did not plan to leave.

At the time she was described as 5 feet 5 inches tall, about 106 pounds, with short dark brown hair and brown eyes. She was reportedly wearing a blue shirt with a seagull design and cutoff shorts with studs. A white 1969 Plymouth sedan was seen outside the residence before she disappeared, but investigators did not publicly confirm its significance.

Blair Peckham reported her missing the next day; he divorced Diana in 1980 and later remarried. The case remains open with no definitive evidence publicly linking anyone to her disappearance. Does anyone who lived in Baroda in 1976 or who remembers that Plymouth sedan have information that could help the investigation?