Anyone have, or know where I might find, info about the "California D-8"
sailplane?

There is a Pacific D-8, listed in the sailplane directory:
span - 31.75
area - 100sq. ft.
aspect ratio - 10
airfoil - NASA 4418
empty wt. - 235
payload - 207
gross wt. - 460
wg loading - 4.6
structure - all metal
L/D - 17
min sink - 4.2
no. built - 3 (1964)
The D-8 was designed as an all metal, easy to build homebuilt construction
project. One belongs to the national Soaring Museum.
JJ Sinclair