The 79-year-old never expected when he was browsing the internet that day that he would uncover a piece of family history dating back some 140 years"It was a picture I had never seen before and my instinct told me that the subjects could be my great grandparents," he told China Dailym6appAccording to Watt, the unique wedding photograph documents the moment of the start of the prominent Nie family in China"The groom, Nie Jigui, served as Shanghai's Governor from 1890 to 1893, died in 1911 and was buried in Hunan, while the bride, Zeng Jifen, died in 1942 and was buried in ShanghaiNot to mention, in an exhibition somem6app 3,500 miles away from where he livedPortrait of a womanWhen New York-based Raymond Watt came across an article on the BBC news website about a Chinese photography exhibition in the UK last November, he was shocked, to say the least