Joanne, have you got access to 1901?
Just supposing Smith was Jane's married name, she then became a widow and married a Robert's? Maybe clutching at straws

Was there a connection with Westbury on Severn that you know of?
James Smith Head M 56 Fishmonger - Retailer b Westbury on Severn
Jane Smith Wife M 40 b Westbury on Severn
Minnie Smith Daur S 24 Shop Assistant - Fish b Staffs. Sedgeley
Lena A. Daur S 2 b Glos.Cheltenham
James Henry Smith - 3 months b Glos. Cheltenham
210 High St., St.Pauls, Cheltenham,
RG13/2460 folio 126 page 22
Susan
Edited full details added