1. Cheese Balls: A combination of grated cheese, cream cheese, spices, and often chopped nuts rolled into balls and served with crackers.
2. Cheese Fondue: A dish of melted cheese served with dipping items such as bread cubes, vegetables, and fruit.
3. Mini Quiches: Small, single-serving quiches made with a variety of fillings like bacon, cheese, ham, and vegetables.
4. Pigs in a Blanket: Hot dog sausages wrapped in crescent dough or pastry and baked.
5. Buffalo Wings: A relatively new concept in the 1960s, buffalo wings were served tossed in a spicy sauce.
6. Cocktail Wieners: Cocktail-sized sausages often served on toothpicks with dips or wrapped in bacon.
7. Shrimp Cocktails: Boiled shrimp served with a tangy cocktail sauce for dipping.
8. Deviled Eggs: Hard-boiled eggs with the yolks mixed with mayonnaise, spices, and mustard, then topped with paprika.
9. Potato Chips: Classic salted potato chips were popular.
10. Dips: Popular dips included guacamole, onion dip, and sour cream dip.
11. Sandwiches & Sliders: Tea sandwiches and mini burgers were common party finger foods.
12. Fruit Platters: Platters of fresh fruits like grapes, strawberries, and melon.
13. Ice Cream Sundaes: Classic ice cream sundaes were a popular dessert.
14. Jello Salads: Colorful salads made with gelatin, fruit, and vegetables.
15. Brownies: Chocolate brownies have always been a crowd-pleaser.
Remember that regional variations and cultural influences were also prevalent, so some foods may have been more popular in certain parts of the country.