Sightseeing on the Green River, Mammoth Cave KY

These two postcards are very similar.  The top one is dated 1962 and shows the Miss Green River.  The one under it is undated and shows the Miss Green River II.

Their descriptions are almost word for word identical on the back, except the first Miss Green River can hold 80 passengers where the second one can hold 122.

The first boat was noted as being operated by Capt. M.E. Nash, where the second one was operated by Capt. Nash and Bob McDaniel.