Sikorsky S-38 Color Documentation Needed!

[zev41]

While doing a Google search, I came across this site.  I am trying to find color documentation for an S-38 flown by The Royale Lines out of Houghton Michigan in 1932 that ferried passengers from the Copper Country to Isle Royale.  This is to be used for a 1/6 scale flying model.  The S-38 acquired by The Royale Line was originally owned by D.W. Morris of Mukwanago, WI and I believe flown under Northwest Airway's colors until April of 1932.  It is possible that Royale Lines simply painted its lettering over the Northwest Airway's colors. I noticed that one of your designers, George Diemer, has a download for the following:.

"2000 Sikorsky S-38 biplane amphibian. Reg #NC303N built ca. 1929, used by Northwest Airways by George Diemer."

Would anyone have contact info for this gentleman?  I have original high resolution photos that I have digitalized, including rare interior shots of the S-38's cabin and instrument panel that I would be happy to furnish in exchange for color documentation help!

Thanks, Dick