FACES FROM ACROSS THE AGES

I've finally solved who these people are in the following photographs and also in what time period the photographs were taken. I did this by researching the studios where the photographs were taken. Both photographs were taken in Sydney; one at Robert Stewart photography in Pitt Street and the other at B.C. Boake photography in George Street. Both were taken in the early to mid-1860's as the studios moved after that.
For many years, these photographs had the wrong names attributed to them and the wrong time period. I can now safely say who they were. 
One is of John Clark, my great grandfather and the other is his first wife, Jane Farrell. At the time they were living in Bowen, Queensland and must have been in Sydney visiting family.