In September 1855, when Rockefeller was sixteen, he got his first job as an assistant bookkeeper working for a small produce commission firm called Hewitt & Tuttle.
U rujnu 1855. godine, kada je Rockefeller imao šesnaest godina, dobio je prvi posao kao pomoćni knjigovođa, radeći za malu proviziju u tvrtki pod nazivom Hewitt & Tuttle.