Imagine a Los Angeles where people could live in the suburbs and travel rapidly each day to their offices downtown on one of the world's finest mass transit systems with interconnecting interurban and local lines. Seems far-fetched, unless one goes back to the early 1900s and Henry Edward Huntington's Pacific Electric Railway with its 900 red and yellow trolley cars crisscrossing Southern California on more than 1,100 miles of track. Where have you gone Henry Edward Huntington? Henry E. Huntington was not the great railroad magnate. That was his uncle Collis P. Huntington, who ran the octopus known as the Southern Pacific. Collis sought to forge a huge fortune on the public anvil, and he did it. Unaccountably he left a thin legacy. Only the town of Huntington, W.Va., bears his name. And he created it.