There was a Richard Melling b1888 who was a greengrocer at 156 Conway Street. This was in 1909 BTW
I am led to believe the family business at the time was Market Gardening - on the Arno in leafy Oxton on the Wirral.
This would place him as my Grandfathers' brother (George 1891).
90+% of the local men worked in Lairds shipyard at the outbreak of WW1 (inc. George) - which due to it being a 'reserved' occupation meant the employees could not be conscripted so Richard was available to volunteer.
I am following up a possible connection to the name Wilson - so there may be a tenuous Scottish connection as well.