From Jamaica Trolleys by Vincent Seyfried, 1953:
"In April 1936 the Independent subway, whose "A" line had been operating from the Bronx to Church Ave. since October 1933, opened its [Fulton Street Line.] To give access to this new Rockaway Ave. Station to residents of Cypress Hills and Woodhaven, the [...?] management extended the Jamaica Ave. trolley service from Broadway, the old terminal, westward along Fulton St. to a newly constructed loop at Hopkinson Ave. The new service opened on the same morning as the subway (April 9th) and operated on both weekdays and Sundays. On the same day Fulton St. trolleys were extended along Fulton St. beyond Broadway, their old terminal, out to Crescent St. and Jamaica Ave. The new "A" line of the Inde-pendent subway was immensely popular at the time, not only because it was a novelty, but because it gave un-usually fast, direct service into New York. This Jamaica Avenue service into the Hopkinson Loop continued right [...?] to the end of 1947. The middle and late 30's witnessed the gradual isola-tion of the Jamaica Ave. line. In December of 1933 the Jamaica Central Rys. motorized their lines, ending 37 years of ¡oint operation through the old village of Jamaica, and leaving the avenue east of 168th St. to the city line without trolleys.

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