Complex sentence: In the United States he adopted the simple surname "Golos" and wound up in New York City, where in 1912 he helped to raise funds for political prisoners in Russia.
Split into simpler sentences: In the United States at some point he adopted the simple surname "Golos," by which he will subsequently be referred to here. By 1912, Golos had found his way to New York City, where he helped to raise funds for political prisoners in Russia.