The defender has recently featured for Holbeach United and signs for the Fenmen on the same day that Danny Emmington opted to stay with March Town.
Manager Brett Whaley said: "Jonno has absolutely everything we need to help us develop as a side.
"He's a big character and organiser, and his ability will make us a much stronger defensive unit. I don’t need to tell any Wisbech supporter how big this signing is for us!"
The club also recently announced 13 of their squad for the 2021/22 season, including captain Liam Marshall, Luke Pearson, and midfielder Danny Draper.
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