Floor Racks
jmann,
I am certainly not the expert on floor racks but I have never seen staples in a floor rack that was manufactured by the factory before 1965. Generally, the manufacturer used the same tacks (clenched) that were used in the canoe. I'm sure there were exceptions and other after market variations along with good intended do-it-yourself folks. In my opinion, staples would not hold up very long without glue.
If you want to research further, please post a photo so others can see and comment.
Thanks,
Ric