I found a clue yesterday that you will find of interest - Poor Aunt Dippy- most likely her cause of death was Heartbreak- she lost so many little children.

Magnolia Gazette, Pike County MS.

Died
SIMMONS
Saturday, July 9, 1892, at the home of her father, Clara, youngest daughter of S. S. and Z. J. Simmons, aged 7 years, 5 months and 12 days.
She was born in Pamona California, and died in McComb City, Miss. Clara was a sweet, loving little girl and 'twas hard to give her up. "Thy will, oh Lord, not ours, be done.

MAMMA