There are two flat, semi-circular springs, about 3/4" wide, that hold the glove box lid closed on the 1937 Ford passenger cars.
I first install both springs in the two slots in the dashboard, then I used a piece of 12 ga. solid copper electrical wire to make a loop to pull the spring out to latch it on the door. Pull with one hand and push the spring over the lip with your thumb.
Note, my pictures do not show the spring properly latched on the door. The spring when properly installed will be over the lowest rolled edge of the door. The spring won't have any tension if you put it in the wrong place.