I found the following at the Pearl Drum Forum:
(1) Citing "Mr. B."
An answer as to when the Presidents finished depended on where the drums came from, in the US arguably from 1969 to sometime before 1972, and in Japan from 1969 to 1979. There is some confusion about this as actual kits don’t always match the catalogs, and catalogs don’t always match from one market to another. The first year was 1966, but generally speaking ‘72 was the last year for Presidents in the North American market, and in Japan they kept the name 'til at least through 1975. The most common shell was 9 ply Luan, however even early on they also had an option called "Plastic Fiber" (a dark brown, Masonite hardboard looking material) that was unique to just the President series. Some of the Japanese market kits could of very likely been Wood-Fiberglass also. To further confuse things sometime around ‘71 they began to use the (until then unique to Presidents) "Diamond Cut" lugs on just about everything. They were probably using up old stock before the big retool. All lugs for all models were updated to the new and long lived C-050’s rectangular style by ‘73.
(2) Citing "3pearlkits" regarding catalogs:
1960’s - No Presidents
1968 - No Presidents
1969 - (Printed in Japan in English): (Quote: "President" drum outfit shell is made of unique plastic fiber. All other model kits 9 ply wood shells.)
1972 - (US) No President series listed.
Artist series: 3/16" full fiberglass shell
Professional series: 1/32" Fiberglass inner, 9 ply wood shell
Deluxe series: 9 ply wood shell,
1975 - (Japan) President Models listed, President 707, 606 and 505, Big Shot,
President, & Crystal Beat.
Various series still seem to have the script President badge, others not. Those have the badge we normally associate with 70’s Pearl kits.
1975 - 9US 0 President kit shown in catalog but not listed as an available model designation. Top model listed is the Dyna Family Outfit with a number of options with fiberglass or wood fiberglass shells
1979 - (Japan) President Export Series, President Series
1979 - (US) Fiberglass, Wood fiberglass and Wood models shown, none listed as President models