外祖父吴忠亚,祖籍湖北省云梦县。他出生于一个耕读世家,家族按“元、亨、利、贞、忠、厚、传、家”排辈,由外祖父上溯五代的“元”字辈世祖吴鼎元是清道光进士,在咸丰朝位居监察御史,为人廉能刚正,当时在全国颇有名气,晚年退职回乡,两袖清风,设馆教育子孙。他的儿子吴道亨,孙子吴利彤、吴利彬,曾孙吴禄贞等,都是从小勤奋耕读,身有功名。在祖辈中,最知名的应该数清朝末年的吴禄贞,他是外祖父的叔叔,少年时,在县里得中秀才,从军后成为首届官派留学日本士官学校的学生,在日本结识了孙中山先生,加入了同盟 Wu Zuya grandfather, native of Yunmeng County, Hubei Province. He was born in a farming family, the family according to "Yuan, Heng, Li, Zhen, loyalty, thick, biography, family In the Xianfeng position to monitor the Censor, as a leader can honestly, was quite famous in the country, retirement in his later years to return to their hometowns, bolster, set up education descendants. His son, Wu Daoheng, his grandson Wu Litong, Wu Libin and his great-grandson Wu Luzhen, all grew up with fame. Among the ancestors, Wu Luzhen, the most famous of the Qing dynasty, should be the uncle of the grandfather. When he was a teenager, he became a scholar in the county and became the first official student of a Japanese noncommissioned officer school after his return from military service. He met Sun Yat-sen in Japan, Joined the league