Aaron was born in Poland. With his family he emigrated to Somerset, England. Upon the urging of church leaders, he left his family behind in England to go to America. While traveling with the Martin company in early October, he lagged behind and was left by the company. He was found by soldiers and decided to stay with them rather than rejoin the handcart company. By 1861, he had returned to England.
He sailed to America in 1856 on the ship Horizon.