Just followed a few links I didn't look at before. Willie-O's link to the Beechcraft Model 18 shows the plane I was thinking of, only the one that was my first plane ride didn't have pontoons. It was owned by Bob Pack, a VP of Sun Oil Company, and he used to fly from Texas to North Carolina several times each summer to spend time with his family at their summer home. My family lived near them in the resort and I played with his grandkids. He took us up a couple of times.

cheers,

david