https://collections.britishart.yale.edu/catalog/tms:49531|General Charles Fleetwood|after Robert Walkerhttps://collections.britishart.yale.edu/catalog/tms:69530|Lieutenant General Charles Fleetwood|after Robert Walkerhttps://collections.britishart.yale.edu/catalog/tms:51033|Lieutenant General Fleetwood|after Robert Walkerhttps://collections.britishart.yale.edu/catalog/tms:69454|Lieutenant General John Lambert|after Robert Walkerhttps://collections.britishart.yale.edu/catalog/tms:25493|Oliver Cromwell and General Lambert|after Robert Walkerhttps://collections.britishart.yale.edu/catalog/tms:38220|Robert Walker|after Robert Walkerhttps://collections.britishart.yale.edu/catalog/tms:38218|Robertus Walker pictor, et pinxit|after Robert Walkerhttps://collections.britishart.yale.edu/catalog/tms:37708|Sir Thomas Fairfax|after Robert Walker