[1] He was named after British astronomer and photochemist Sir John Herschel, a friend of his mother.

[2] His father had purchased an estate in what is now Sri Lanka 30 years prior to their departure while he was in service to the Crown and a member of the law commission in Calcutta.

[8] At the Cameron Studio, he showcased a collection of his mother's work, including portraits of Tennyson, Browning, Longfellow, Lowell, Darwin, Herschel, and others.

[9] Cameron was a founding member of The Linked Ring, a British photographic society, established in 1892.

[8] Henry Herschel Hay Cameron died in 1911 in Croydon, South London, England.