The date is strongly anchored by the apparent ages of the two boys, Roland (b. 1930) and Charles (b. 1931), who appear to be approximately 12 and 10 years old, respectively. The swimwear styles, particularly the woman's patterned one-piece and the boys' high-waisted trunks, perfectly align with the early 1940s.

A black and white informal snapshot of a family of four standing waist-deep in a public swimming pool. From left to right: an adult man holding a towel and cigarette, an adult woman in a patterned one-piece swimsuit, a younger boy in belted trunks, and an older boy with his arms crossed. In the background, other swimmers, a white picket fence, a diving board structure, and large trees are visible.

46, 42, 10, 12

• Face 0: Age ~46, Male — Adult male with short, wavy hair, holding a towel and a cigarette, wearing dark swim trunks.
• Face 1: Age ~42, Female — Adult female with dark hair pulled back, wearing a dark, patterned one-piece swimsuit.
• Face 2: Age ~10, Male — Young boy with short hair, thin build, wearing dark, high-waisted swim trunks with a light-colored belt.
• Face 3: Age ~12, Male — Older boy, slightly taller and broader than the younger boy, standing with arms crossed, wearing looser dark swim trunks.

The swimwear is indicative of the late 1930s to 1940s. The woman wears a patterned, likely Lastex or similar fabric, one-piece suit. The younger boy's belted trunks are a specific style marker of the era before fully elasticized waists became the standard for men's swimwear.