Carl Baker and Gary McSheffrey were among the former Coventry City players who scored in the matches on Tuesday night.
Carl Baker scored in the 28th minute of a 2-1 home defeat for MK Dons against Chesterfield.
Gary McSheffrey netted in a 2-2 draw for Scunthorpe United away to Fleetwood Town.
Former City loanee Chris Dagnall scored for Leyton Orient in a 3-1 home defeat to Bristol City.
Former City striker Cody McDonald scored for Gillingham in a 3-0 win at Swndon Town.