This recipe was clipped from the Successful Farming Magazine and was published in 1955, it was found in a large collection. I’ve typed it below along with a scanned copy.

So-good Meat Loaf
(Makes 6 servings)

1 pound ground veal
1 pound ground beef
1/2 cup chopped green pepper
1/2 cup chopped celery
1/2 cup chopped onion
2 eggs, beaten
2 cups soft bread crumbs
3/4 cup milk
2 teaspoons salt
Dash pepper
1 can condensed cream of mushroom soup
2 tablespoons horse-radish
1/2 cup catsup

To meats, add green pepper, celery, and onion. Work in eggs, crumbs, milk, seasonings. Shape into a loaf; put into 9-1/2×5-1/4×2-3/4 inch loaf pan. Bake at 350° (moderate) for 45 minutes. Invert on 11x7x1-1/2 inch pan. Mix soup, horseradish, catsup. Pour over meat. Bake 30 minutes more.