I think this may be a four generation photo.
It is a Azo Postcard used during the years 1904 to 1918.
Addressed to Mrs. C. Besserud Lake Park Minn
The gowns are all pigeon breasted so I think this photo was taken 1904 to 1910.
Thanks for stopping by. Do come again:)
Update from Iggy: Yes this is 4 generations!
Svanaug Fagerli (Thorstendatter) (c.1835 - c.1930)
Johanne Bjørnsdatter Frydenlund (Thorson) (1861 - 1934)
"Chester's mom" was Annette Celine (Netta) Thompson (nee' Frydenlund) (1890 - 1971)
Chester Palmer Thompson (January 25, 1910 - 1967).