The 'Bradford Folk'

Hannah Hill (or Sarah Ann!) Jame BROOK b1826?
Above: Two of the most intriguing photos in my collection. I THINK that they MIGHT be of my great great grandfather James BROOK (b.1825?) and his third wife Hannah BROOK (neé HILL) (b. 1845?). Hannah is believed to be the sister of his second wife Sarah Ann BROOK (neé HILL b.1827 d.1874), who was my great great grandmother. The photos were taken in Bradford possibly in the mid-1880s (but I am just guessing). I would REALLY like to positively identify these two!