Navy Bean Soup

It's been really cold here - lots of snow today so its time for warm and hearty meals.
My husband's friend Spencer used to make the most incredible Navy Bean soup - it was just beans and broth, but I have never been able to duplicate it, and sadly he has passed on, so I needed to find a better one than I had. Enter good old Better Homes and Gardens. This soup was wonderful! I did change a few things and made it in my crockpot. My husband has been eating it for several days now and was sad when I gave some to our neighbor and put the rest in the freezer!
Navy Bean Soup
1 bag dried navy Beans
1-1 1/2 lbs meaty ham bone
1/2 cup ham (left over from ham dinner)
1 1/2 cups sliced celery
2 cups sliced carrots
1/4 tsp onion powder (or 1 onion chopped -I hate onion, so I rarely use it)
3/4 tsp crushed dried thyme
1/4-1/2 tsp salt
1 bay leaf

Put beans and ham bone in crockpot, cover with water
Add the rest of the ingredients except 1/2 cup of ham and cook on slow 6-8 hours.
Remove bone from crockpot and cut up any bits of ham left on bone. Add 1/2 cup cooked ham and serve

That's it! So simple, but so tasty!