213054
His and subsequent finds , all from the Mount Stephen area , came to the attention of palaeontologist Charles Doolittle Walcott , who in 1907 found time to reconnoitre the area .
 Charles Doolittle Walcott
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Charles Doolittle Walcott