Dad bought the land where the trees stand in 1947. They were fairly old then. The gentleman who sold him the land (All the neighborhood kids referred to him as Uncle Ed) had set them out when he was eleven years old. He died sometime in the early 1960s when he was in his late eighties.
Mom used to 'put up' Pear Honey ( http://www.backwoodshome.com/articles/yeager52.html ) every fall.
Pare and core hard-ripe Kieffer pears. Cut in chunks small
enough to easily feed through food grinder fitted with coarse
blade. To each quart of ground pears add the following:
3 cups sugar
Juice of one lemon
Grated rind of one-half lemon
1/2 teaspoon ground ginger
Boil mixture in stainless steel, porcelain, or graniteware
pot stirring frequently until thickened (Do not use aluminum).
When desired thickness is achieved, immediately put in hot, sterilized
jars and seal. Remember that this is a spread and should not be
overcooked to a jelly stage.
A tasty variation is to substitute orange and nutmeg for lemon
I remember once wrapping some of the larger pears in newspapers and storing them in our basement. We still had pears at Christmas.