This recipe is from a cookbook titled Casserole Cook Book by Better Homes & Gardens, printed in 1961. This recipe sounds very good, on my to make and taste list.
Rinse peas and place in a container and add water to cover by 1 inch. Set aside and let soak for 4 hours.
Drain peas and place in a large pot along with the ham bone and seasonings. Add the 2 quarts of water. Bring to a boil, then reduce to low and simmer for 1½ hours. Stirring occasionally.
Remove the bone, cut off meat and dice, return meat to the soup, discard the bone. Add the celery and onion to the soup. Simmer for another 30-40 minutes or until the vegetables are tender. Taste and season with salt as desired.
Serve and enjoy.
Notes
Low cost per serving using ham hocks as they are very common.