Sometimes I am so sad that I scare myself
From my copy of JP Airline Fleets International 1986 (see what did I say sad sad sad

)
Most of the B747's owned by KLM were named after great rivers, the exceptions being the combi versions being named after famous aviators and/or Dutchmen.
No sign of BUJ or Hudson however.
Fence now departs to sit in the corner and mumble to himself