Meg Libby, 32, is a human resources specialist for the Department of Homeland Security. Jonathan Mueller, 31, is a data analyst for Obama for America. They live in Hyattsville.

Wedding date: April 28

Location: Oxon Hill Manor, Oxon Hill

Guests: 160

How they met: On April 28, 2006, Libby spotted Mueller while she was chatting with someone else during a grad student happy hour at American University. By coincidence, the person she was talking to was a friend of Mueller, who walked over and was introduced. They spent the rest of the evening together. A week later, they dined at Pasta Mia for their first date.

The proposal: The couple went to Pasta Mia to celebrate their fourth anniversary and then walked to Kalorama Park, where Mueller proposed on the swing set. Libby had spotted a jeweler’s card at home but played it cool and feigned surprise. She was so excited that she grabbed the ring before he could put it on her finger.

The wedding: They picked “It Had to Be You” for the processional and chose a 1940s Old Hollywood theme for the reception, which Libby said fit the manor’s marble floor and long, winding staircase. Decorations included family wedding photos, each with a tag identifying the couple and the date they were married. Instead of a sitdown dinner, cocktails were served accompanied by Dean Martin and Frank Sinatra tunes. Their first dance was to “At Last” by Etta James.

The honeymoon: They didn’t have much time because Mueller would be moving to Ohio to work for the Obama campaign. They rented a cabin in Mount Nebo, W.Va., for three nights and spent the days hiking and having quiet time together.

Janet Bennett Kelly