I just had a dickens of a time looking it up in the AHS Database, finally had to search on "Stump" anywhere in the name, and it came out:
Dr Celia Stump (no punctuation mark!)
Now I guess I'll have to go back and correct my records, redo my plant label, etc. And you're right -- Graceland Gardens still has it listed as
"Dr. Stump", no mention of "Celia", and with the period...