The Dictionary of Australian Artists Online (DAAO) has a short biography of Henry Rayner, click here to see it.
The New Zealand National Collection of War Art includes some interesting wartime drypoints by Rayner, showing blitz scenes in London. You can see them here.
The British Museum has proofs of ten Rayner drypoints. You can see details via the museum's online search facility. Click here.
The Print Room at the V&A has three Rayner prints in its collection. Details here.