Burnelli glider design, built by Bowlus-Criz MC-1 XCG-16 military transport glider experimental

https://www.flickr.com/photos/133697406@N05/18243731244/

Following photos date from September 21, 1944 and were likely taken at Oxnard Flight Strip in California; this later became Oxnard Air Force Base and is now Camarillo Airport.

http://retromechanix.com/general-airborne-transport-xcg-16-military-transport-assault-glider-part-2/

From a Popular Science magazine

http://histomil.com/viewtopic.php?t=691&start=430
http://www.indianamilitary.org/FreemanAAF/Aircraft%20-%20American/XCG-16/XCG-16.htm