Hi Steve,
There seems to be a connection between Jones and Porter. Charles Porter, born Portsmouth 1823 is also known as Charles Jones (1861 census, Newark, Chailey, Sussex) The Porter|Jones's have connection with the Bacon family from their Surrey years during their slow move from Sussex from Hampshire around 1845. They spent a lot of time aroung Hastings and Heathfield, Sussex. One of these Bacon-Porters rommered my great Uncle Bill Clark.
My distant Clark family relatives wed Kemps women twice (Burwash, Sussex, census returns of of 1851-1881, Sophia Kemp) and Wadhurst (1871 census, Lucy Kemp) then Pembury (1881 census). These Clarks are static compared to my other Clark relatives, but the names of the Burwash lot are unconventional which points to Romany (or a speech defect). The Pembury Clark-Kemps I think emigrated to Canada shortly after 1881.
Brenchley & Horsmonden in Kent, Warbleton & Ticehurst, Sussex and [Northiam, Ore, Pett and Fairlight - all near Hastings] seem to have stopping places where Romanies atched regularly.