The Guennol Stargazer and its findspot

There has been much attention paid to Turkey's claim on the Guennol Stargazer. It needs to be remembered that Pat Getz-Gentle (Getz-Preziosi) appeared to confirm that the figure was found in central Anatolia, i.e. Turkey.

Incidentally, the Guennol Stargazer is reported to have been found with the Stargazer in the Shelby White collection as well as other figures in several other North American private collections.

The authority for Getz-Gentle's statement is unclear. How did she know that the six figures were found together? Did they pass through common hands?