UNIDENTIFIED: May 26, 1865 Boston, Massachusetts John Doe

On May 26, 1865, the body of a young boy was found in the Boston Harbor in  Boston, Massachusetts. He was never claimed and was buried at the Mount Hope Cemetery in an unmarked grave in the potter's field. 

Its believed the boy was around 8-years-old. 

SOURCES:

Find a Grave

UNIDENTIFIED: May 19 to 22 1945 Uithuizermeeden, Netherlands John Doe

 Between May 19 to 22 1945 the body of a man was found in Uithuizermeeden, Netherlands. There is little information in this case. 

SOURCES:

Politie

UIDENTIFIED: May 19, 1957 Kinston, North Carolina

 On May 19, 1957, a skull would be found in the lowlands area of the Neuse River just outside of Kinston, North Carolina. There is little information in this case. 

SOURCES: 

NamUs

Murder of James Walsh

 Around 1 am on May 18, 1853, 54-year-old James Walsh was found stabbed in a court area in 1 Pleasant Passage, Lower Holloway in London, England. He was unable to say much except it was a woman who stabbed him. But he was unable to say how it happened. He was taken to the hospital and died shortly after. 

SOURCES:

Unsolved Murders UK