At the time, the Supreme Court justices "rode the circuit" to judge circuit court cases individually. Field was the second justice assigned to the Tenth Circuit encompassing California and Oregon. His predecessor had been the only circuit judge not on the Supreme Court; however, Field was, bringing the Supreme Court to ten justices. | At the time, the Supreme Court justices "rode the circuit" to judge circuit court cases individually. Field was the second justice assigned to the Tenth Circuit encompassing California and Oregon. His predecessor had been the only circuit judge not on the Supreme Court; however, Field was, bringing the Supreme Court to ten justices. |