Not sure what happened to my reply so here goes again and apologies if it has duplicated.
My gt grandmother was Eliza Emily Brenham. Her father married Caroline Eliza Newton nee Moxey after his first wife died. Frank and his siblings became step siblings to George's children. Whilst it is not pleasant to contemplate my gt. grandmother always maintained that she was attacked by her half brother and it resulted in the birth of my gt. aunt Mary Ann Brenham bn 1899 in a Devon workhouse. Whilst he was not listed as the father on the birth certificate he was listed as the father on her death certificate in 1915. He was listed as a former draper shop walker (deceased). Their circumstances in 1901 - Eliza is an inmate in an institution, Mary Ann living with another family as a nursechild and Frank married to a Jessie living a few miles away seem to bear out the story. I cannot find hs death however but maybe he emmigrated too.
Hope that helps