378988
The lake was named in the 1860s by Alexander Caulfield Anderson , who traversed the uncharted territory in 1846 , after his cousin and boyhood friend , Lt. Col. Alexander Seton , who was drowned in the wreck of the troopship HMS Birkenhead off the South African coast in 1852 .
 Alexander Caulfield Anderson, Alexander
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Alexander Caulfield Anderson, Alexander