A.K. McCallum, Co. is the only independently owned marine dealer that is known to publish it's own 50 + page catalog listing it's products and prices. A.K. McCallum, Co. stocks over 400 jon boats from 10' to 24' with 110 different models being offered. For over 50 years now, thousands of satisfied customers have purchased their boating outfits from A.K. McCallum, Co.