HENSLEY:
John de Henselay 1297 (Yorkshire);
Henry Hensleigh 1662 (Dorset)
from Hensley (Devonshire)
Unfortunately my Oxford Dirctionary of Plance-names doesn't have Hensley. But it has
HENLEY: "high wood or clearing" / "wood or clearing frequented by hens (of wild birds)"
LANDERS >
LAVENDER: Ricardus de la Lavandaria 1219 (Somerset)
Robert de la Lauendrie 1278
"worker in a wash-house", Middle English "lavendrie"
Andy ;—)