Crime Solvers Central
Crime Solvers Central
302 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.

Case Description

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Summary based on the NamUs case record (MP1296) and 5 other sources
Mary Michelle Sprague, 19 years old at the time, disappeared from Daytona Beach, Florida, on September 11, 1979. That evening, she had visited her workplace, a nightclub in the 300 block of Madison Avenue, to collect her paycheck and have a few drinks. She left the nightclub around 1:00 a.m. after an argument with her boss. A cab driver later reported that they had to evade a truck that appeared to be following them as they left the club. Mary was never seen again after that night.

At the time of her disappearance, Mary was working as an exotic dancer and was a mother to a young son. Her family did not believe she would have left her son behind voluntarily, raising suspicions of foul play. Mary’s case has remained unsolved for decades. Sadly, her son was later adopted by another family and has since passed away. Many of her close relatives, including her mother, are also deceased.

Despite extensive investigations, no significant leads have surfaced, and her case remains a mystery. Investigators continue to seek any information that could shed light on her disappearance.

Last Seen: Sep 11, 1979

Possible Unidentified Matches (4)

Unidentified remains cases whose details are consistent with this person, ranked by how closely they compare. Fields that are unknown in either case are left out of the score.

78%Possible
Jane Doe — Bradenton, Florida - unidentified case UP1265
Jane Doe — Bradenton, Florida
UP1265 • Found Apr 9, 1983
View case
Sex ✓Female
Age 100%Est. 11–20 vs 19 when missing
Race 100%White
Location 65%151 mi away, same state
TimingFound 4 years after last seen
Height 100%5'6" vs 5'6"–5'8"
Weight 95%100 lb vs 115–125 lb
Hair 100%Brown vs Brown
77%Possible
Jane Doe — Palm Bay, Florida
UP116037 • Found Jan 17, 1985
View case
Sex ✓Female
Age 100%Est. 24–28 vs 19 when missing
Race 100%White
Location 79%85 mi away, same state
TimingFound 5 years after last seen
Height 84%5'2"–5'4" vs 5'6"–5'8"
Weight 100%95–105 lb vs 115–125 lb
77%Possible
Jane Doe — Weeki Wachee, Florida - unidentified case UP12589
Jane Doe — Weeki Wachee, Florida
UP12589 • Found Mar 19, 1981
View case
Sex ✓Female
Age 100%Est. 20–30 vs 19 when missing
Race 100%White
Location 74%105 mi away, same state
TimingFound 18 months after last seen
Height 100%5'4"–5'6" vs 5'6"–5'8"
75%Possible
Jane Doe — Dade, Florida - unidentified case UP7514
Jane Doe — Dade, Florida
UP7514 • Found Sep 4, 1979
View case
Sex ✓Female
Age 100%Est. 18–25 vs 19
Race 100%White
Location 50%254 mi away, same state
TimingFound same day as last seen
Height 100%5'6"–5'8" vs 5'6"–5'8"
Weight 100%120 lb vs 115–125 lb
Hair 50%Blond vs Brown
Eyes 70%Gray vs Blue

These comparisons are generated automatically from public NamUs case data and are not confirmed identifications. Only DNA, dental or fingerprint comparison by investigators can confirm an identity. If you believe two cases are connected, contact the agency handling the unidentified case.

Unidentified photos are blurred because many are post-mortem. Tap a photo to reveal it.