Well, John. You are probably never going to make this dressing, but I'm posting it here for the world. (i.e., Elaine.)

Aunt Susie's Celery Seed Dressing

1 cup oil (I use canola or plain vegetable)
1 medium onion, quartered (unless you don't have a blender; then you have to grate it.)
1 tsp salt
1 tsp dry mustard
9 TBS. sugar (I know. I know.)
1/2 cup white vinegar
1 TBS celery seed

Mix oil, onion salt, mustard & sugar in blender.
Blend well to combine.
After the ingredients above are combined, slowly add the vinegar and celery seed while blending on low speed.

This dressing keeps well in the fridge. For a very long time. Good thing, too. It makes a lot. It's awesome in any sweet/sour combo, fabulous with Gorgonzola and pears and pecans and ... and .....