The reading:

Sacred to the memory of
Mary Burrell
Who on the 15th of November 1800
Two hours after she was safely delivered
Of a daughter who survived her
Was seized with a frenzy
After 15 successive paroxysms
And snatched into eternity
in the 15 year of her age
leaving to lament her anumerous hundred
but no one to feel her loss
Equally with the mournful writer of this
Robert Sproat M.D.

>(This is classic description of what today is
known as Eclampsia, frequently seen in teenage
girls in their first pregnancy, either at term or shortly
after delivery. Very high mortality even up to a few
decades ago)<

Also of Elizabeth
Her daughter
Who died of a malignant fever
on the 5 of Nov. in the 26th year of her age.

>(Malignant fever was commonly refered to cases of
sepsis or severe bacterimia, in this case likely from
a gynecological or obstetric complication)<

Also of James Robert son of the said Eliz
Who died on the 29th of November
In the 6th year of his age.

Reader
It is not to excite your pity
That this marble is inscribed
But to inspire you with such sentiments.