Your Mousis-side grand mother (very right of the photo) and grand father (kneeling). Between the two is one of their daughter (the one from Lescar I believe, alive in 2014) and her husband (in dark clothes, hands in his pockets and cigarette between his lips) - most probably taken in the 20-30's in Eysus

The four Mousis sisters - probably taken in the 30's in Oloron

One of the Mousis brothers, Jean-Baptiste Mousis (my grand father) (early1950's) in Eysus

Mousis family gathering photos