Bertha Smith (117) was born in 1883 in Hastings, Sussex.
From there she progressed much as her siblings above by living at 62 Linden Grove, Camberwell in 1891 and 6 Tennison Road, Croydon in 1901.
In 1911 she was with her sister Elizabeth at 26 Warrior Square, St LeonardŐs on Sea where she was employed as a dressmaking teacher.
I can find no record of marriage.
I believe that this the correct person