Police in Washington are to hand out leaflets asking members of the public for help in finding missing Daniel Moir.
The 23-year-old was last seen in the Fatfield area a week ago.
His family say it is not like Daniel to go missing like this that they are becoming increasingly worried about him.
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He has agreed a two-year contract at St. James' Park and becomes the tenth new face in the Magpies' first team squad this summer.
On the back of three consecutive Championship wins, the Magpies sit fourth, poised to move into the automatic promotion places.
Callum Young, who will now be 23, was last seen on August 27 last year at his home in Hylton Road.