In that year she published , anonymously , a book illustrated with her work , A Voice from a Picture .
In 1839 , she married Captain Arnold , R.N. , and from then on exhibited under her married name .
In that year Arnold published , anonymously , a book illustrated with Arnold 's work , A Voice from a Picture .
In 1839 , she married Captain Arnold , R.N. , and from then on exhibited under her married name .