I had a look at the 1911 Census and could see the Rogersons at Pensarn Farm. With the Census forms you sometimes can get a good idea of the location by flicking the pages back and forth.
With the Rogersons however, they were the last family in that particular ward so I could only establish the names of houses on one side of Pensarn Farm.
The nearest houses were Bryn Derw, The Hermitage, Waen Hyfryd and after that came the houses on Esgyryn Hill that I am familiar with.