John Falconer, British Library
A Biographical Dictionary of 19th Century Photographers in South and South-East Asia
At the Madras Exhibition of 1855, ‘Mr Holt exhibits some portraits taken at Mysore but they are on too large a scale for the size of the camera which appears to have been a small indifferent instrument. They are not focused with sufficient accuracy and most of them have been left too long in the hyposulphite solution. The four positives in glass by the same exhibitor are very dark and the attitudes are stiff and artistic.’
- Λ Madras Exhibition of raw products, arts, and manufactures of Southern India, 1855. Reports by the Juries, Athenaeum Press, Madras, p. 134.