Hi Col

That theory is exactly what I am thinking.

I think one of Richard Ellis and Charlotte E Clucas Holroyd sons returned to Lancashire (which is where many of them were born, Liverpool and then relocated to IOM) and is showing on the 1891 census a Richard B Holroyd residing with another male (Arthur George Paul, aged 26) both boarders and Jane Johnson aged 53, Stretford, Lancashire, England.

I am wandering if he then met someone named Wood (he was aged 23) and then fathered the male Wood child.