Defender Holdsworth arrived on a free following his release from Oldham last week, while midfielder Hurst has signed on loan from Carlisle.
Both men made their Shrimps bow in Tuesday's 1-1 draw at rivals Accrington and will now make their first appearance on home soil.
McIlroy has no fresh injury or suspension concerns but defender Paul Scott remains absent as he recovers from a knee operation.
Midfielder Craig Stanley and defender Will Haining have joined Torquay and Fleetwood respectively, but McIlroy will look to offset their departures with a couple of new faces when the loan window opens.
Source: PA
Source: PA