In the La Libertad (Madrid. 1919), page 8, on December 3, 1927 the luthier placed an ad looking for an "ebanista" = journeyman Cabinet maker and varnisher. Francisco Simplicio was an "ebanista" before he joined the workshop of Enrique Garcia.
Again in the La Libertad (Madrid. 1919).on May 20, 1930, page 12. and in the La Libertad (Madrid. 1919).on November 6, 1930, page 12. similar ads were placed. Ads for the same search by Francisco Gonzalez in 1850 can be found, in Madrid newspapers at that time.