On-loan Ipswich striker Ellington, yet to score in three appearances for the Iron, has missed the last two games due to a calf strain, while midfielder Walker has been out for the same period with ankle ligament damage.
The Iron secured their first win in five league matches at Leyton Orient last week and manager Brian Laws will not want to make too many changes.
Wingers Andy Barcham and Mark Duffy supported Karl Hawley in his lone role up front for the Iron at Orient, but Laws could be ready to recall Ellington for the home encounter when a bumper home crowd hope to mark 100 years as a professional football club with victory.
Centre-half David Mirfin remains sidelined with a knee ligament injury as Scunthorpe look to climb out of the bottom three with a fourth win in eight league matches.
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