from the Leeds Mercury - Friday 11 December 1925
HAMPERS.—One fowl, dozen farm eggs, 1 pound farm butter, 10s. Lynwood, Finningley Common, Doncaster
Lynwood can be found on Google maps, on Wroot Road to the NE of Finningley. Lynwood isn't shown on old maps so must be a 20th century house, but it seems to be just up the road from Finningley Grange Farm, which appears on old maps as simply Finningley Grange. So even though Finningley Common isn't marked on old maps, I think it was in this area.
There are also several Victorian newspaper descriptions of local fox hunts which mention Finningley Common and that are consistent with it being in this general area (i.e. to the NE of Finningley).