Panther Hill is a feature name you could add here.  The resident of what's now 1 Whitehall Hill Rd. explained it.  Whitehall Hill Rd. used to be part of Whitehall Rd. (former part of the Morris & Sussex Tpk.), but with Byram and Green Twps. numbering their portions in opposite directions (meeting at the corner with Morris & Sussex Tpk.) for postal purposes.  I asked, "So this is Whitehall Hill?"  "No, there is no Whitehall Hill, this is Panther Hill."  They thought they'd resolve confusion by adding "Hill" to the name of the part in Byram.  Drivers still get misdirected.  Many of the streets were named relatively recently by the major landowners in Green and Byram.