1) The skilled workman who applied plaster to walls, especially the outside walls of buildings. The plaster was evidently white.
1333 Willelmus Whitebrow, plasterer, York. The by-name 'plasterer' remained in use well into the fifteenth century: 1396-7 Et in solucione facta Ricardo Plasterer et fratri suo ... pro parietibus prćdicti tenementi plastrandis, 6s 8d, Ripon
1453-5 Et de 22d sol. Johanni Plastr’ pro platsteryng muri aulć ibidem, Ripon
1466-68 ‘Paid to William Playsterer ... plasterer ... for plastering Ł1 10s 0d’, Hull.