Lew's wife Susan contributed several recipes to cookbooks over the years. This one is from the 1913 Sunshine Cookbook.
2 tablespoons of sugar
1 teaspoon of salt
½ pint of vinegar
2 large tablespoons of melted butter
2 teaspoons of mustard
2 large coffee cups of boiled ham minced fine, using a portion of the fat
A little pepper
2 tablespoons of fresh cream
Yolks of 3 eggs
Heat the vinegar, beat the yolks of the eggs, sugar, salt, mustard, butter, pepper, well together, and stir into the hot vinegar. Continue stirring on the stove till the sauce bubbles; then add the cream and pour it over the ham; have ready baking powder biscuits rolled thin and cut small. Thoroughly bake or they will be soggy, split and spread with butter while slightly warm, then spread thickly with the minced ham and lay the halves together.