“Soundings” magazine has an obituary on Larry Briggs at:
http://blog.soundingsonline.com/loose-cannon/2014/01/23/power-voyaging-pioneer-larry-briggs-leaves-a-fascinating-legacy/
“Champion’s” circumnavigation was serialized in “Sea” magazine. I recall “Champion” being built of teak, with a varnished hull. Later I saw her cruising the main channel of Santa Barbara Harbor, and was told Fess Parker owned her. The bird was allowed out of its cage during the circumnavigation, being put in its hanging barred, spherical cage when in port.
I took a San Diego harbor cruise aboard “Invader.” She was in pretty poor shape. Nothing like she is today.
http://www.schooner-invader.com/ENG/index.html
Here is the listing for “Chartwell.”
http://www.denisonyachtsales.com/boats-for-sale/boat-details.php?BoatID=4510219
She looks rough with many household items used such as the doors to the deckhouse, and water heater.
Chris Byer
Cathedral City, CA