The wave of immigrants who worked dangerous jobs building railroads and early California infrastructure faced decades of discrimination, marriage restrictions and private injustices. The documents Chan Share clutched as he left China were forged. It was 1939 and Asians were not allowed to immigrate to the United States. So, like many others, Share claimed he was a "paper son" and had a California-born relative whose records were lost in the 1906 San Francisco earthquake.