Pratt was son of Charless Pratt, Standard Oil executive.
Homes - Famous
After graduating from Amherst College in 1896, he studied at Harvard Law School, graduating in 1900.
He worked as a lawyer for the prestigious firm of Carter and Ledyard at 54 Wall Street in New York.
Pratt died suddenly in his Broadway office on June 17, 1927, aged 51, of heart disease. Thirty six years earlier, his father, Charles Pratt, died of heart disease in offices at the same address.
His family owned many estates nearby.