Is this family anything to do with the others

1891 RG12 / 1405 / 124 / 15
Fred Bird head age 23 b Romford, Essex, occ traveller
Caroline wife age 32 b Needham, Norfolk
William son age 1 b Thorpe, Essex
Robert son age 3 months b Chelmsford, Essex
Address Caravan, Tenpenny Hill, Thorrington, Essex
There are others in caravans but not name Cathay has mentioned
Sue