John Philip Holland was born on February 29, 1840 and died on August 12, 1914. John Philip Holland would have been 74 years old at the time of death or 172 years old today.
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John Philip Sousa was born on November 6, 1854 and died on March 6, 1932. John Philip Sousa would have been 77 years old at the time of death or 157 years old today.