Walker
The spook name Walker, famous for the 2 crooked US presidents named George Walker Bush, seems to be a variant of Fuller, as a fuller was often called a “walker”. The Semitic word for this occupation was קצר qṣr, which was also a transcription for Latin Castro meaning “palace”. The same word also meant “cutting” which in Latin is called caesura.
English walker = fuller
walker : (now rare) synonym of fuller — English (Wikt)
Walker : a northern English surname from the occupation of treating cloth by “walking” it — English (Wikt)
walker : Walker is an English and German surname derived from either a fuller, from the Middle High German walker, meaning “a fuller of cloth”, or an officer whose duty consisted of walking or inspecting a certain part of a forest. — English (Wiki)