www.harrowphotos.com

Wikipedia: Photographic plate

Anchor text: Harrow Photos

Wikipedia: Charles Hardinge, 1st Baron Hardinge of Penshurst

Anchor text: Harrow Photos Collection

Wikipedia: Harrow on the Hill

Anchor text: Harrow Photos

Wikipedia: Ian White-Thomson

Anchor text: harrowphotos.com – website for the one remaining archive of photos from the company - from their Harrow branch

Wikipedia: Hills & Saunders