It's got a bit more information than usual but I figured I'd try doing it this way. I'd like to point out that I don't know the maiden name of Stillman's wife Mary Ramona, hence "LNU" - last name unknown.
Helen never married or had children. I don't know much about her other than that she spent her old age writing poetry to her cat - we have a whole book of it.
Anyway, let's move on to the photos! Some of them also have her younger brother Walter in them.