This uses one lime and one lemon, but I'm sure two limes would work.

Here is a link that might be useful: Lime Jello

Here's one that I used to make in the 60s....
Springtime Lime Salad
Makes 8 servings.

1 package lime gelatin
¾ cup boiling water
1 cup evaporated milk
9 ounce can crushed pineapple
1 tablespoon lemon juice
1 cup creamed cottage cheese
½ cup broken nut meats
½ cup mayonnaise

Dissolve gelatin in ¾ cup boiling water. Cool slightly, then stir in evaporated milk. Chill until as thick as unbeaten egg whites. Add pineapple, lemon juice, cottage cheese, nuts, and mayonnaise. Mix well.

Pour into an 8-inch square pan or a mold holding 5 cups. Chill before serving.

Thanks a lot. Carla's recipe seems very close to my old one and will try it this year.

A recipe I have used is similar, but not exactly the same. It has lime jello, sour cream, crushed pineapple and walnuts. Good luck finding what you are after!