Louis Wu is the son of Beowulf Shaeffer
and Sharrol Janss
. His biological father
is Carlos Wu
. He was born in 2650, and has an older sister named Tanya.
Louis Wu appears in the following stories by Larry Niven
1. There is a Tide, 1968
2. Ringworld, 1970
3. The Ringworld Engineers, 1980
4. The Ringworld Throne, 1996
There is a Tide appears in the collection Tales of known space (1975).