William Harcourt HENWOOD was undoubtedly the assumed persona of Hingston Bond LUSCOMBE (born 1893 in Canterbury, NZ). His behaviour throughout his life of serial bigamous marriages and abandoned families was entirely consistent.
My maternal grandmother was a LUSCOMBE and a first cousin to Hingston. Myself and five of my cousins (or their children) are all genetic matches (ranging between 10 and 85 cM) to a descendent of William Harcourt HENWOOD and his fourth wife. There is no other obvious genealogical or genetic explanation other than William HENWOOD was actually Hingston LUSCOMBE.
I have been researching the LUSCOMBE family for some years. Without these RootsChat postings there is no way that I could have ever have discovered what became of Hingston, after he disappeared so completely in 1930. The clue was his WWI army number on his grave stone. It was amazing that he was able to get away with what he did across 50 years, from 1918 to his death in 1968, without being apprehended.