Here's one from an old Cookbook with yellow pages called Company's A-Comin'

Bean Salad
1 can kidney beans, drained
Chopped celery
Chopped onion
Chopped hard cooked eggs
Salt and pepper to taste and mix with mayonnaise.

From My Favorite Recipes 1959

Kidney Bean Salad
4 hard-cooked eggs, diced
1 No. 2 can kidney beans (about 2 cups), drained
1/3 cup coarsely chopped sweet pickle
1/4 cup finely chopped onion
4 tablespoon sweet pickle juice, divided use
1/4 teaspoon Accent
1/2 cup Mayonnaise

Put beans into a bowl; add eggs, chopped sweet pickle, chopped onion, 3 tablespoon sweet pickle juice and Accent. Blend together mayonnaise and 1 tablespoon sweet pickle juice. Turn dressing over salad mixture and toss lightly to coat vegetables. Chill in refrigerator until ready to serve. Serve in crisp lettuce cups. About 4 servings.

In my files I found one I've made and liked.

Marian's Bean

Recipe By: The Garlic Lovers' Cookbook Volume II
Serving Size: 8
Preparation Time: 0:00
Categories: Beans Salads

Amount Measure Ingredient Preparation Method
4 cups red kidney beans cooked
2 medium onions finely chopped
2 medium green bell peppers finely chopped
1/2 cup catsup
1/2 cup real mayonnaise
1/2 cup sweet pickle relish
3 cloves garlic minced
2 teaspoons white horseradish
1/4 teaspoon dry mustard
1/4 teaspoon Worcestershire sauce

Rinse and drain beans. Mix with remaining ingredients. Chill and serve.
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I hope these help in your search.