Johannes Jonker was an American wandmaker (Pm).
- His wands were inlaid with mother-of-pearl, and chose to make cores from Wampus cat hair (Pm).
Jonker's father was NoMaj cabinet-maker who influenced his artistry in making beautiful wands.
According to Ancestry.com, the name Jonker is Middle Dutch from jonghheer ‘young nobleman’ combining jong(h) ‘young’ + herr ‘master’, ‘lord’. Used for a member of the nobility who had not yet reached knighthood.