no sorry nothing else on 1911 census for them that i have. but i did run out of credits so its possible that you could look for them on there.
i have found most of my details from searching through parish registers as thats where they got the children baptised and most of them did marry legally, not just "gypsy marriage" what ever that may be

i did give you some details for john and menty though and it seems that the buckleys spent alot of time in kent, particularly at corks meadow area. well peron's family did. also southborough.
have just seen a little note that i left for myself which states this;
married to menty/minty loveridge. grandparents of N-word.
lived at 16 sutton road rochford. grave no;692
i do know that they are buried at eastwood church
stephen & alfred both baptised there 05/05/1923
i have just found this, i think it might confirm emily's name. both maiden & married.
walter smith 18, father josiah smith, married to emily taylor 16, father elias taylor 10/08/1874. witnessed by william & matilda piggott. just to confuse you a bit more josiah smith was actually a buckley but used smith as alias. (so they were really walter & josiah buckley later in life and when they died.)

is this helping?
dont want to confuse things and spend time typing up stuff that you dont really need.
happy to help though. having a spring clean

so will be backwards and forwards on the pc if you need any more help