Arthur Barron assisted Dr Spence who was researching Richard Suter and the production of microphotography at the time Dr Spence gained access to a collection of John Benjamin Dancer glass plate negatives. Richard Suter had purchased the negatives and remaining microphotograph stock from Dancer's daughter Elizabeth Eleanor Dancer. Dr Spence bequeathed the collection to Barron, who subsequently sold the negatives and associated documentation to the Museum of Science and Industry in 1997.