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Designed by architects Henry Sproatt and Ernest Ross Rolph , the Gothic Revival tower stands at 143 feet ( 43.6 m ) tall and houses a carillon of 51 bells .
 Henry Sproatt
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Henry Sproatt