Both Robert & Mary Ann signed their marriage certificate with an X. The marriage certificate shows that his address at the time of his marriage to Mary Ann Mills (nee Chesman) was Eaton Street, near Waterloo Station.

The 1891 census shows Robert and Mary at home with their first born, Mary Ann, at 42 Webber Row.
1910 C: With Mary,42 Mary,11 and Wil,8 at civil parsih of St George the Martyr.

His death certficate shows his death in 1904 at 11 Lancaster Street. There are no Ripper/Mills/Chesman families in this street in the '91 census, the actual house being occupied by the Downs family.
His wife Mary Ann was present at his death at age 44 of pneumonia & cardiac failure.
The English Probate Calendar (index) 1858-1930 shows "Robert RIPPER of 7 Lancaster Street, Borough Road, Surrey died 30th May 1904.
Administration London 23rd June to Mary Ann RIPPER widow. Effects £154-11-0."