Photograph
of Robert Brown, b.1836, Shildon
Inherited from his daughter Helena
Brown b. 1876.in Newcastle-on-Tyne.
were taken around the time of the S&DR jubilee
in 1875.
The Brown portrait is in a cardboard 'Cabinet
Portrait' mount, an invention of 1864. He would have been 28 in
that
year.
Gowland who drove Sans Pariel in
the Rainhill Trials
would have been 53.
The source Gowland photograph can be found here : http://www.scienceandsociety.co.uk
and also in the book, Timothy Hackworth and the Locomotive, by Robert Young, published by The Hackworth Society
in conjunction with The Book Guild Limited,
Sussex, England.
Looking into the studio details---both men
appear to wearing similar 3/4 length coats---similar
cuffs, lapels, buttoning, etc.
To have taken Gowland's photo in those days the sponsors must have gone to some trouble, as he
had
migrated to Bolton about 30 years earlier (as driver of the re-cycled Sanspareil).