Cut white bread into 1" cubes. Put in single layer on baking sheet. Place in oven on 250 degrees until bread dries out, turning so it becomes crisp on both sides. If cornbread is too moist, crumble it up and do the same. Let bread cool then mix bothmkinds together in a large bowl. Add sage and poultry seasoning and salt. Melt butter in frying pan and add onion and celery, cook until soft. Let cool some and then add to bread mixture and mix in. Gradually add in broth and mix. Taste and add more seasoning if needed. Mix in eggs. Put in buttered Pyrex or casserole dish. Cook at 375 covered for 30 mins, uncover and let it start to brown on top- around 15 mins.