Hi John! Hi Shawna! My grandmother was also known as Matilda (Balf) Isted (see 1881 census Parish of Greenwich, in County Kent - Ref RG11/1719, folio 43, page 13 - ALSO see extended family members in Ref: RG11/0720, folio 29, page 24)
Her mother - Mary Ann (Baulf nee Rees) -married John Isted 37yrs old of Cold Bath County Kent in 6 March 1881. The census mis-spells the name Baulf slightly but all of Mary Ann's children from her first marriage are lioving with them.
As a second thought for you. In Wanganui - New Zealand there are several families of Isteds (Ron and Ruth Isted - 30 Niblett Street, Wanganui New Zealand)My Grandmother's step father John Isted mentioned above is in their family tree. Their son has a very extended family tree study. Hope this helps a wee bit Ron Webb - New Zealand