Yes, the rumor is true. There was a significant sale of five Hemingray's at the Bolack Tailgator on June 6-7, 2008.
Clockwise from the upper left:
CD 133 H.G.CO. in Orange Amber (VVNM). Perhaps less than a dozen known.
CD 145 H.G.CO. in White Milkglass (VVNM). Only one known.
CD 131.4 Patent Dec 19, 1871 in Purple (VNM). Only one known (a second purple one is known, but it is unembossed)
CD 112.4 Hemingray No 8 in Golden Amber (VVNM). Perhaps two to three dozen known.
CD 114 Hemingray No 11 in Red Amber (NM). One of two known. The second one is about VNM.
More details have been posted to ICON.