Great South Bay Shore Bird sailboats

Looking for detail specs of the Great South Bay Shore Bird sailboats
Built in the 1920’s by SW Newey designed by Charles D Mower
Does anyone know where I might find detail specifications?

This is what we have on Sailboatdata.com: https://sailboatdata.com/sailboat/great-south-bay-shore-bird.
We also found a couple of pages on them in Sailing Craft, edited by Edwin J. Schoettle, © 1928 by the MacMillan company. Reissued January 1949. Pages 756-760 - Great South Bay Shore Birds by William Gill.