Before assuming that Naylor was a gipsy you really need to know exactly what his occupation was.
In 1901 his father James was a Traveller, the census enumerator has written alongside C.T which would mean Commercial Traveller (A travelling salesman) which is different from a Gipsy. If you look at the 1911 entry for the family you will be able to see what the accommodation is that they are living in and how many floors it covers.
As you have been advised on your other post his mother Rachel was a Hawker - she probably took her 'wares' into town to sell on the street.
I would suggest that you Google Gipsy/Romany/Hawker as that is all I would do to answer your query
