1853 – He was born on the 15th of December in Philadelphia, Pennsylvania.
– He was educated at the University of Pennsylvania.
1875 – Biddle was commissioned a second lieutenant in the Marine Corps.
1882 – He returned to sea duty on the Kearsarge in March.
1884 – He was promoted to first lieutenant.
1891 – He returned to Philadelphia for duty in February.
1894 – He promoted to captain.
1895 – He resumed sea duty on board the Baltimore.
1900 – With the battalion, he arrived in China in time to take part in the famous relief expedition to Peking.
– Capt. Biddle was transferred with his battalion to the First Brigade of Marines, Philippine Islands.
1903 – He was promoted to lieutenant colonel on the 23rd of March.
– In December, he was sent to Panama in command of the battalion of Marines on the Dixie.
1905 – Lieutenant Colonel Biddle was promoted to colonel in February.
1906 – He returned to the Philippine Islands where he commanded the First Brigade of Marines.
1910 – He returned to Headquarters where he continued to serve the remainder of his active duty.
1911 – He became the Major General Commandant of the Marine Corps on the 3rd of February.
1914 – He was retired on the 24th of February.
1923 – Major General Biddle died in Nice, France, on the 25th of February and was buried in Arlington National Cemetery.