Mary Corrance was the youngest daughter of Major John Corrance (1711-1804) of Roughan, a distinguished veteran of the battles of Dettingen, Fountenoy and Culloden. She married Snowden White, M.D., of Newton Flotman, Norfolk. She died in 1836.
The present work is an excellent example of Romney's early style and is datable to the late 1760s or early 1770s, before his sojourn in Italy. It shows the artist's interest in the paradigms for fashionable portraiture that were formulated by Reynolds and his followers. Romney's talent with young and elegant sitters is already pronounced and his handling of the soie changeant of Miss Corrance's dress is highly accomplished.