A man tending to his backyard was in for the shock of his life when he found 13 tombstones embedded in the soil.

Jason Blackburn, who works as a nurse at the Baptist Memorial Hospital for Women in Memphis, Tennessee, was doing some yard work when he discovered a large headstone beneath a few inches of dirt. Upon further research, he released these stones were not decorative, and belonged to soldiers who likely died in the 1960s.

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