A watercolour by Doreen Perkins entitled
"Jackson's Potting Shed 1950 behind the
'Chocolate Box', High Street."

Extract from 1000 Years of Rushden August 1956:

A resident of Rushden since 1900 and for many years proprietress of the High Street sweet shop “The Chocolate Box”, Mrs Frances Tomlinson, died aged 84.

Mrs Tomlinson's shop at 88-90 High Street and was listed in Kelly's Directory 1940.

The land behind had been Jonathan Seckington's nursery ground and his shop was at 86 High Street. So perhaps Mr Jackson had the nursery land with the shed already erected by Mr Seckington or his son?