EVANSTON—To the delight of her family, missing senior citizen Winifred Leibowitz reappeared on Wednesday when she wandered into the lobby of Elder Residential Community. She was not let back up into the dorm rooms because she did not have a valid Wildcard. Mrs. Leibowitz says she mistook Elder Residential Community, the newly renovated North Campus dormitory, for the assisted living community her children had suggested she make her new residence. “I just saw all the darling children and assumed they