Complex sentence: Lenah Higbee took postgraduate training at Fordham Hospital, New York in 1908 and in October 1908, she joined the newly established U.S. Navy Nurse Corps as one of its first twenty members.
Split into simpler sentences: Lenah Higbee took postgraduate training at Fordham Hospital, New York in 1908. In October 1908, she joined the newly established U.S. Navy Nurse Corps as one of its first twenty members.