Complex sentence: Despite the hardships of exhaustion, high winds, and temperatures of -55F, the party was able to return to the "Advance", but Jefferson Baker later died-the rescue party had been out for 72 hours and travelled nearly 90 miles.
Split into simpler sentences: Despite the hardships of exhaustion, high winds, and temperatures of -55F, the party was able to return to the "Advance". Still, Jefferson Baker later died-the rescue party had been out for 72 hours and travelled nearly 90 miles.