Watch Tackle (gun
tackle purchase, luff tackle purchase), as used to get the canoes up
banks and over sand dunes. I imagine they used D or E.
Hooks aren't required, obviously!

E.F. Knight, in his book Small Boat Sailing, gives
this information:
A LUFF-TACKLE PURCHASE has the same power as the
whip-upon-whip purchase. It has one single and one double block, the
standing part of the tackle being fastened to the single block. It is
used for a variety of purposes, among others for the main sheet on a
small cutter.
A WATCH TACKLE is a luff tackle with a tail rope some
feet in length on the double block, and a hook on the single block. A
watch tackle should always be kept in some convenient place on a
yacht's deck, for it is employed on all sorts of odd jobs which more
beef is wanted.
It is indeed almost worth an extra hand on board, so
sailors dub it the 'Handy Billy.' Among other things it is useful for
setting up the rigging.
It is employed as follows: the single block is hooked on
to a ring-bolt on deck, or to a strop or bight of a rope secured to the
bits or other strong piece of timber; while the tail of the double
block is fastened by a rolling hitch to the shroud or rope which has to
be hauled taut.

A Rushton Princess canoe,
donated to the Adirondack Museum by a descendant of the Mr. Wilson
(sic; actually Wulsin) mentioned in the book. Dr. Neidé's camp
would have looked something like this.

Image from Boats and Boating in the
Adirondacks by Hallie Bond, which contains an annotated catalog of
boats in the museum collection. See also the Adirondack Museum library, Blue Mountain Lake, New York.