Last week -When First Twin Jenna Bush marries Henry Hager this weekend in Crawford, Texas, she’ll be the first presidential child since 1992 to tie the knot while Dad’s in office. That year, Jenna’s aunt Dorothy—younger sister of George W. Bush and youngest child of George H.W. Bush—married Robert B. Koch, in a quiet ceremony at Camp David.

If I could pick five White House weddings to attend and report…