I agree with your age estimates.
PS - the reason I went for the early 1910s is that I have a photo of my mother in 1913 which is so like your photos.
Thanks again Gadget for your appraisal.
This is an open question. When it comes to dating photographs, would it be safe to assume that there are many factors which can help date them? Such as clothing, composition, location, development technique, size and colouration to name a few.
Would it also be safe to assume that dating photographs by clothing would be much more accurate the more affluent (or fashionable) the subject is? Would our poorer ancestors be less likely to be wearing similar clothing styles to their richer contemporaries? Or perhaps stay in certain clothing styles for longer, or perhaps even wearing newer styles only when they were old, tired and discarded by their richer peers? Bought second-hand or passed over through charity?
Regards,
B