He is living with a family called Montgomery, by the 1891 Census the daughter there (mistranscribed as Catherine, actually Caroline) has two daughters, Ada & Ethel. All three are using the surname Downes, Ethels Birth Cert has Thomas as the father, there are rumours she was born before the census, and their is a registration for 1880, but she is more likely to have been born in 1881. A cousin has her birth cert so I don't have the exact date, but it does say Thomas is the father.
J