Hi there, not sure if you have the census info etc?
1851
Thomas Barnby,Head aged 38 born 1813 Maidstone,Kent,Confectioner
Isabella Barnby,Wife aged 37 born 1814 Bisley,Gloucestershire,Wife Of Confectioner
Thomas Barnby,Son aged 9 born 1842 Monmouthshire
Isabella Barnby,Daughter aged 2 born 1849 Monmouthshire
Sarah Close,Visitor aged 16 born 1835 Birmingham,Warwickshire,Assisting In The Buisiness
Mary Harper,aged 18 born 1833 Gloucestershire,General Servt
Address: Agincourt Square, Monmouth
Marriages Dec 1866
Thomas Barnby Cheltenham 6a 883
Marianne Bendall Cheltenham 6a 883
Births Jun 1867
Ernest Marquois Barnby King's N. 6c 481
Births Sep 1868
Frank Archibald Barnby Birmingham 6d 96
Births Jun 1872
Frederick Mills Barnby King's N. 6c 439
Births Mar 1878
Lilian Mary Barnby Aston 6d 444
1881
Thomas Barnby, Head aged 39 born 1842 Monmouth,Monmouthshire,General Toy & Fancy Dealer
Marianne Barnby,Wife aged 40 born 1841 Cheltenham,Gloucestershire
Ernest Marquois Barnby,Son aged 14 born 1867 Bham,Warwickshire
Frank Archibald Barnby,Son aged 12 born 1869 Balsall Heath,Worcestershire
Frederick Mills Barnby,Son aged 8 born 1873 Balsall Heath,Worcestershire
Lilian Mary Barnby,Daughter aged 3 born 1878 Aston,Staffordshire
Isabella Barnby,Mother Widow aged 65 born 1816 Gloucestershire,Housekeeper
Ellen Powell, Boarder aged 38 born 1843 Cheltenham,Gloucestershire,Shop Assistant To Above (Toy)
Elizabeth Hall, Boarder aged 25 born 1856 Yorkshire,Shop Assistant To Above (Toy)
Margaret Pebles, Boarder aged 24 born 1857 Scotland,Shop Assistant To Above (Toy)
Harriet Philips,Servant aged 27 born 1854 Malvern,Worcestershire,Domestic Servant
Hannah Woodward, Servant aged 18 born 1863 Bewdley,Staffordshire,Domestic Servant
Ernest Pottinger, Visitor aged 19 born 1862 Cheltenham,Gloucestershire,Commercial Clerk
Address: 13, Key Hill Drive, Birmingham
Deaths Mar 1887
Thomas Barnby 45 King's N. 6c 297
1891
Mary A Barnby,Head Widow aged 50 born 1841 Cheltenham,Gloucestershire,Shop Keeper
Isabella Barnby,Mother In Law, Widow aged 76 born 1815 Gloucestershire,Living On Her Own Means
Ernest M Barnby,Son aged 24 born 1867 Birmingham,Staffordshire,Toy Dealers Manager
Frederick M Barnby, Son aged 18 born 1873 Balsall Heath,Birmingham,Apprentice
Lilian M Barnby, Daughter aged 13 born 1878 Birmingham Aston,Warwickshire
Agnes E Bendall, Niece aged 19 born 1872 Cheltenham,Gloucestershire,Milliners Shopwoman
Susan Daft, Niece aged 17 born 1874 Cheltenham,Gloucestershire,Toy Dealers Apprentice
Elizabeth Gardham, Servant aged 19 born 1872 Droitwich,Worcestershire,Housemaid Domestic
Jannet Stafford, Servant aged 23 born 1868 Walton,Warwickshire,Cook
Address: Meadow Hill, Meadow Road, Edgbaston, Birmingham
Deaths Mar 1896
Isabella Barnby 82 King's N. 6c 275