Snoot says:-
Additional References
Fleetwood, coastal town in Lancashire, in northwest England
Fleetwood, Pennsylvania, borough in Berks County, Pennsylvania, USA
Fleetwood Town Centre, Surrey, British Columbia, Canada
Company Info: Ticker, Name, Description
FLEETWOOD ENTERPRISES INC
Exchange: NYSE
Produces manufactured housing and recreational vehicles, including motor homes, travel trailers, folding trailers, slide-in truck campers and related supplies.
Hmmm... how did all this end up in the GREEN forum? 
Ah well, I'm not foolish enough to attempt the same thing for "Green"! 
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Snoot, the one reference that you have missed is from the URL that I gave (
http://www.fleetwoodmobiles.com/FLEETWOOD_services.htm).
This outfit is all about mobile recording studios... trucks with recording kit...
How many mobile recording outfits existed bearing the Fleetwood name in the company title?
Thereby lies the coincidence.
As for a (weak) link with the Green forum.
Greenbaum= GreenWOOD.. Fleetwood=FleetWOOD (perhaps it should have been Fleetbaum)
nearly a segue.
As for Royalties, did 'Harold' ever ever get credited for anything?