Sun Yat-Sen & this leader who followed him were brothers-in-law; their wives were sisters
.... 
Members were drawn mainly from fellow Cantonese expatriates and from the... [DOC] [TLE] Sun Yat-sen Biography & Facts  Leader of the Chinese Kuomintang [PAR] Sun Yat-sen (1866-1925) was the founder of the Kuomintang, ... His worldview 
was widened when emigrant members of his family, including Sun Mei, his older 
brother, arranged for him to attend school ... to start their professions or enter 
military or civil service were influenced by Sun's ideas.