Analysis of information sources in references of the Wikipedia article "Frank J. Sprague" in English language version.
Electrical engineers all across the country were aware of what was going on in Boston, including AlEE members. The AlEE Handbook of 1900 reported that the 1890 General Meeting held in Boston included a tour of the West End 's facilities. The Secretary at that time wrote: "This was the most extensive system of electric railway work then proposed and every facility being granted for its thorough inspection, the occasion proved one of the great interests." Surprisingly, the project progressed very rapidly, without hesitation or false starts. Each company line was rebuilt, electrified, then placed into service. The last horse was finally retired sometime in 1897.
