Chinese honor their dead on Tomb Sweeping Day, which fell on April 5 this year, but Qian Tongsheng also remembers his lost family members on March 25, when organ donors are remembered in China.

On those two days every year, the 73-year-old from Wuhan, Hubei province, and his family head to Shimenfeng Memorial Park, where the names of donors are inscribed.

Qian is quick to locate the name of his mother-in-law, Wang Kezhen.