I traced the Packer family winter estate (now a boys' home)via topographic maps to an area on the south side of the St. John River just below Jacksonville University. I was surprised to find that one of the closest neighborhoods is called Eggleston Heights!
It was Robert Packer who first established the estate. When he died in 1883, the estate fell into the hands of his sister Mary Packer Cummings and she willed it to St. John's Episcopal Church. No Eggleston tie-in there.
However, Robert's young widow moved to NYC where in 1886 she married Richard H, Eggleston This was not the first instance of an Eggleston-Packer intermarriage; there was a Philadelphia branch of the CT Packer family that intermarriage with Egglestons.
Why do I keep running into Egglestons?!?!? Does anyone know where the neighborhood name of Eggleston Heights came from?