sibling Charlotte (c1834, Culklompton) is a visitor in Yorkshire in 1851 ..
1851 - HO107/2377; Folio: 343; Page: 15 - North Allerton
 
Thomas Maunder 37  Head Surveyor of Taxes Devon, Honiton
Emma Maunder 33  Wife Cullompton
William Haine Maunder 4  nephew Honiton
Charlotte A Leigh 17  visitor Cullompton
Eleanor Garthwaite 19  servant
given the PoBs, I'd say she was related, even tho the enumerator has her simply as a visitor ?