The reverse of this group of photographs all feature the red ELIJAH HART imprint. The crinoline dresses of the ladies and girls suggests the 1860s as date of production.
Images : Maitland City Library
Image : State Library of Victoria
It appears that there may be a stand or headrest behind this boy (right), the base visible at floor level, just behind the feet.
Earlier photographs required the subject to stand still for a period of seconds and studios utilised a range of headrests or stands to facilitate this.  
This portrait features the same studio props and drapes as one of the ladies' above (right) however the graphic on the reverse of the photograph is distinctly different.