DONALDSONVILLE — A downtown Donaldsonville building owned by the same family for more than 100 years has been sold, The Advocate reports.The paper reports that the three-story, over 10,000-square-foot brick building at 122 Railroad Avenue, previously owned by the local Masonic lodge since it was built in 1895, has been sold to Donaldsonville local Bill Dawson.Dawson, the chairman of the West Ascension Hospital Board, bought the building for $265…