About 30 years ago, on my first and last trip to Sicily, we noticed a Tedesco olive oil company based in Trapani, Sicily.
My Tedesco relatives came from the country-side hamlet area Madarocco,outside of Marsala. My grandfather and great grandfather were both Francesco Tedesco. They wwere into exporting products to New York (& were probably squeezed out of business by the mafia.)
I am visiting Florida now beside reside in Seoul, South Korea as a professor and editor.
It is good to hear from you. My sister Paula can be reached at firstname.lastname@example.org