Finally found a couple of links I was missing in the family of Nicholas and Honor (DAWE) COMBELLACK to convince me who all these variously named people were:
Richard Thomas aka Richard Charles aka Richard marr. to Annie WOOD living Penzance
Isaac Daw aka Isaac aka Isaac Charles marr. to Annie PUGH and living Cardiff (buried Thanet)
have all been combined into the family of Nicholas and Honor, who may, or may not, be Henry and Flora in Cardiff in 1881.
For the curious, the links that finally convinced me were a couple of War Graves, and War memorials.
Isaac's burial in Thanet records him as Isaac Charles, son of Nicholas and Honor and husband of Annie Pugh COMBELLACK of Roath, Cardiff
and Richard James, died Mesopotamia 1919 is shown as son of Mr and Mrs R T COMBELLACK of the same address as the Richard Charles COMBELLACK who married Annie WOOD.
My Rootsweb WorldConnect database LornaHenderson has been updated to reflect all the latest findings.