Records of China, Collection of Genealogies are available online, click here.
始祖 : 杨讨讳讨塞原讳弘勋为杨氏入关之祖
散居地 : 河北省 ; 山西省等地
Microfilm from East Asian Library, Columbia University, New York.Salt Lake City : Genealogical Society of Utah, 1977. -- 1 reel ; 35mm.