Answer:
The speaker mentions so many family members in this poem to describe a happy family moment in the poem.
Explanation:
"Ode to Family Photographs" is a poem written by Gary Soto. The poem is about a few bad photographs that the poet's mother has taken. It is from memories that the poet is writing this poem.
By recalling the memories and describing the distorted photographs, the poet is trying to describe the happy family moment they had. The reason that the speaker mentions so many family members is to describe a family moment when the poet's mother took the camera in her hand and the whole family had a good laugh because she captures bad photographs.