Your gr grandmother was Maggie Linehan who married Charles Raymond Lacaze. Maggie's sister Catherine married Barney(Bernard) Ward and they were my grandparents.
Maggies parents were Daniel Linehan and Nancy Forrest Linehan - your gr gr grandparents.
Daniel's parents were Daniel Linehan and Ellen O'Sullivan - your gr gr gr grandparents. These are two of the people in the photograph you attached along with their daughter Kitty your gr gr grandaunt.
The children in this family were
Michael, Thade, John, James, Paddy, Kitty(in the photo), Jerimiah, Daniel(your gr gr grandfather), William, Julia and Con.
Daniel married Nancy Forrest and their children were
Lena, Johanna, Catherine(my grandmother), James, Maggie(your gr grandmother), Daniel, Julia, Nancy, Molly, Miki, Bessie and John. Miki and Molly were twins.
My email is firstname.lastname@example.org
if you want to contact me directly. I will be able to help you locate on Google Earth the house where Maggie grew up.
While I believe the above information to be correct I have discovered in this family history business it is always useful to keep an open mind and be ready to be corrected.