Back in the early days of the Republic, Hung's great-grandfather set up a model train track in the courtyard of their old home in Tamsui. His grandfather was fond of photographing trains and railroads. And his father and his uncle took him on train rides almost every week as a boy. It was, you might say, a whole family of train buffs!
早在民國初年，洪致文的曾祖父就在淡水老家庭院裡鋪上火車鐵軌模型，玩起玩具小火車；祖父熱愛拍攝鐵路、火車照片；洪致文則從小幾乎每星期都被父親和伯父帶去坐火車，可謂一家都是火車迷！