Looking for Browns from Sale England

looking for nieces nephews cousin from the brown family from sale ,england.
my gggreat parents were william and emma brown[nee hickson ]
they had children william graham,hilda,dora, and i think there were another one or 2 siblings[sisters]
emma and william emigrated to new zealand and emma died at sea on the way over to new zealand
if anyone can help trace any members of williams family[the family] and any of emmas siblings would be very very much appreciated