File:Sir William Thomson, Baron Kelvin by T. & R. Annan & Sons.png

in the UK under: File:Baron-Kelvin-William-Thomson-compass-1902.jpg identifies the photographer as specifically James Craig Annan, but I can't find any

Of the people named or implied to be named, the last, the son John Annan, died in 1947: Or, if we presume the photographer is anonymous, it's still published

Of the people named or implied to be named, the last, the son John Annan, died in 1947: Or, if we presume the photographer is anonymous, it's still published