The Turn-of-the-20th Century snapshots of
the Blake & Clark Families
#1 - "Oyster Bay, 1900"
#2 - "Oyster Bay, 1900"
It's difficult to determine these women's identities, but my guess is that the woman on the left in #1 and #2 is Adeline.
#3 - "1895"
Because of the date, these might be Lucian's sisters., although they might be friends or cousins.
#5
These two aren't identifiable beyond the fact that neither are Adeline or Lucian as far as I can tell.
#4 - "1898"
While the trio isn't completely identified, Adeline is in the center. Her dress is also the same as the one she wears in #2 in Oyster Bay. As with other photos, it is likely that this photo is taken at the same time as the other two, and so one of the dates - 1898 or 1900 - is incorrect.
#6 - "Mrs. Bourne and Nathalie 1910"
Thanks to a generous exchange of family information it has been determined that this is Natalie Ayers Bourne (1887-1971) and her mother Sarah Randolph Barrett Bourne (1857-1924)