Well, apart from the obvious gender difference, I'd say that, given the sour facial expression, the one on the left would be Kerry, and that given the protruding Orc-like ears, the one on the right would be Bill.
What I do not understand however is where the year 1958 comes from in that banner.
Bill was born in 1953 — which may indeed correspond to how old he was in that photo — but Kerry was born no sooner than,
you know, the second half of the 1960s — she's like,
you know, a few years younger than I am, and even I wasn't around yet on this planet in 1958. As the matter of fact, 1958 was the year my parents got married.
[I]