On May 13, 4:15*pm, Nyal Williams wrote:
A US glider designer named Gross produced some 4-place gliders in the 1935,
and one of them was owned by the Purdue University gliding club.

Does anyone have pictures of such a glider? *The designer has been tracked
to Akron, I believe and their historical society has some information about
him.

Dr. Frank Gross and his work are quite familiar to us at the National
Soaring Museum, where his "Sky Ghost" is on display. We charge modest
research and copying fees for non-members. Inquiries may be sent to
nsmATsoaringmuseum.org.