First one right around 1890, and not much leeway due to the type of sleeve...it didn't come out until 1889 and was replaced by a completely different style in 1893. So this is likely Hannah Davies.
The second one is I think a reprint made about the same time. It shows a lady wearing late 1860s, maybe 1870s style clothing but very plain if it's 1870s. Also a late 1860s type of pose. But the backing is 1890s, so it has to be a reprint. Hannah Jones then, and likely a memorial photo.
Cheers,
China