On a heavy pitch, with the most affected areas covered in sand before the start of the game, Chris Wilder named the following side: Duke, Tozer, Diamond, Doumbe, Robertson, Hackett, Ravenhill, Carter, Morris, Connell, Sinclair.
New signing Ryan Edwards, on loan from Blackburn Rovers, made an immediate Morecambe debut.
A cagey first-half, not helped by the surface, saw little in the way of clear-cut chances being produced while Chris Hackett was forced off through injury to be replaced by Gary Deegan.
When a goal came it was an own goal, fortunately for Northampton it went the Cobblers' way as Wright put through his own net on the stroke of half-time.
Padraig Amond equalised for the hosts with a quarter of an hour remaining but Town held firm to add another point to their tally. They are now three points behind Portsmouth and Wycombe Wanderers.