Thanks. Consensus here and elsewhere seems to be "Sears," possibly including Elgin and/or Sea Nymph. The wt and dimensions correspond pretty well to Sears "semi-vee" boats from the 50s, 60s, 70s. Noticeable is the apparent absence of a drain plug in original form and that the spray rails begin several feet back from the bow.
A key limitation of all these is the load rating of 500 pounds or less. Not enough for two adults, a motor, tank of gas, and some gear.
Alan