The goal was a garden party worthy of the Edwardian era, a long summer afternoon spent leisurely playing croquet or just enjoying a cold cocktail. And the host, Cambridge Historical Tours, pulled it off at the Hooper-Lee-Nichols House on Brattle Street, with the Longy School of Music providing the soundtrack. History buffs know that the Hooper-Lee-Nichols House, originally built in the late 17th century, predates the Edwardian era by a couple hundred years, but so be it.Names can be reached at firstname.lastname@example.org. Follow Mark Shanahan on Twitter @MarkAShanahan. Follow Meredith Goldstein on Twitter @MeredithGoldste.