It was in Kevin Roderick's Wilshire Boulevard: Grand Concourse Of Los Angeles (Santa Monica: Angel City Press, 2005). The author briefly mentions (on page 20):
"New subdivisions around the periphery of Los Angeles were not unusual in the mid-1890s, but the Wilshires had grander ambitions. Across the center of their land, they promised to grade a generous, one-hundred-twenty-foot-wide graveled boulevard.
It would stretch just four blocks between the two parks, but the brothers believed that even a short stub of remarkable avenue would attract lot buyers.
To spur sales, they lobbied to encircle the tract with special streetcar lines, but insisted that the city council forbid the laying of tracks - forever - on their boulevard."
Forbid the laying of tracks?
Forever?
Really?
We had to determine if this had actually been codified, and turned to the City of Los Angeles Municipal Code to investigate.
Sure enough, we discovered in SEC. 62.129. PUBLIC BOULEVARDS - USE OF:
That the following regulations shall apply to those certain streets in this City, known as Wilshire Boulevard, from Park View Avenue to the west City limits; Adams Street from Grand Avenue to Hoover Street; Boyle Avenue from Whittier Boulevard to First Street; Alvarado Street from Seventh Street to Hoover Street; and Occidental Boulevard from First Street to Sixth Street; which have been heretofore dedicated as open, public boulevards:(a) No railroad or pipe line franchise shall ever be granted, and no railroad track or pipe line shall ever be laid or constructed, except water pipes, sewers, gas mains and conduits for telephone and electric wires, for service of the property fronting on said boulevards and house connections and connections of water, sewers, and gas pipe lines, or conduits for telephone and electric wires on intersecting streets.
The early developers of Wilshire were successful in banishing rail lines from the Boulevard forever. Despite having the greatest urban rail system in the world in its heyday, no streetcars ever rumbled down Los Angeles' grandest street.
This 1925 Kelker DeLeuw City/County Comprehensive Rapid Transit Plan Urban Map shows nothing on Wilshire - cross-town streetcars were designated for Pico Boulevard, 3rd Street, and Hollywood Boulevard.
A 1938 Los Angeles Railway map depicts cross-town streetcars on several east-west lines: 3rd Street (R), 10th Street / Olympic Boulevard (L), Pico "Street" (P), Washington Boulevard (W), and Jefferson Boulevard (J). Only motor coaches served Wilshire Boulevard.
Wilshire still became the city's grandest boulevard despite its lack of "rapid transit" - or perhaps because of it - and Rodericks' book is a fascinating account of Los Angeles' iconic boulevard and how one street can influence such a large city.
We can't know how the street or city would have developed had streetcars run along it, but Wilshire Boulevard never got stuck with overhead transit either.
We might be thankful we didn't end up with a Wilshire monorail, as one proposal depicted the intersection of Wilshire & Fairfax here.
Meanwhile, this Saturday marks the annual Great Los Angeles Walk, which goes back to its roots this year.
The day-long trek will take participants 15.6 miles along the entire length of Wilshire Boulevard, from Pershing Square downtown to its west end at the Pacific Ocean in Santa Monica.
The L.A. Conservancy has a wonderful interactive website that helps visitors create their own customized tours of Wilshire Boulevard's past and present.