Dream of Mary Girard and Mistress of Stephen

Name:            Allen Hampton
Email:           Allen2829@aol.com
Location:        Pennsylvania, Philadelphia
Type:            Ghost
Date:            Thursday, September 02, 1999
Time:            05:45 PM

Background information: I work at Pennsylvania Hospital in Philadelphia. I recently had thought of going out during my break and exercising. The next night, at home, I had a dream that I was jumping rope at 0200 and a ghost appeared. We started talking and she told me that her name is Sally Ann Girard.

Sally was born in 1753 and died in 1831. She told me that this was her grave that I had been jumping on. We talked for what seemed like hours with her floating around me and fading in an out in brightness.

Now the weird stuff: Stephen Girard had a wife named Mary that was committed to Pa Hospital in 1785. While Mary was an inpatient at out hospital, Stephen had a mistress named Sally Bickham. Hence the ghosts name of Sally Girard. They were together for nine years then Sally left Stephen to marry.

Mary died in 1813 at the age of 56 and was buried on the grounds of the hospital in an unmarked and unadorned grave. Stephen Girard died on 12/26/1831 and his remains were moved to Girard College on 1/9/1851.

Why am I dreaming of these events, although the dates are mixed up and the ghost called herself Sally Girard, not Mary. But a lot of similarities between the info is weird. What does this mean?

Another note. The only thing I had prior knowledge of was that Mary was an inpatient and was buried on our grounds.
Please help.
Allen Hampton