 Hellman lent the money that allowed Harrison Gray Otis to buy the "Los Angeles Times" and Edward Doheny and Charles A. Canfield to drill for oil.Hellman was also a major investor in trolley lines, putting in funds in 1874 to start the Main Street and Agricultural Park Railway, which traveled from the Plaza, the heart of Los Angeles's downtown, to Agricultural Park, a popular horse-racing track.Hellman eventually invested in many of the city's rail lines and with Henry Huntington formed the Los Angeles Railway in 1898 and the Pacific Electric Railway in 1901.