Several museums and art galleries in the UK have collections of etchings by Dorothy Woollard. In most cases, the etchings are not on permanent display, so it's advisable to enquire about viewing arrangements before you plan a visit.
As Dorothy was a Bristol-born artist, it is perhaps not surprising that the largest collection of her etchings is in Bristol's Museum & Art Gallery. The collection includes some very early works from her days at the Bristol School of Art.
The Victoria & Albert Museum has proofs of 17 of her etchings. These are of special historical interest, since they all date from her early days at the Royal College of Art, and were gifted to the V&A by the legendary head of the etching school, Sir Frank Short. Most, but not all, were subsequently marketed commercially.