Frederick, the son of Frederick and Elizabeth Brown was born in 1893 at Blue Nobby Station, north of Warialda NSW. After his family moved to Wallangra Station he attended Wallangra Public School. He was a twenty two year old Shearer when he enlisted on 1 March 1916. With ten other volunteers from the Warialda district he joined the Second Kurrajongs on their train journey to the Narrabri Camp.
Frederick became a member of A Company Depot Battalion at Armidale and in May 1916 was transferred to B Company, 3rd Reinforcements of the 33rd Battalion. He eventually sailed from Australia with the 4th Reinforcements on HMAT A 30 Borda in October. After arriving in England at the beginning of 1917 the Battalion moved to France in March. Two weeks later they were sent to the Front line. Frederick was Killed in Action on 2nd October 1917 near Zonnebeke.
Private Frederick Brown has no known grave and his name is among the thousands inscribed on the Menin Gate Memorial, Ypres, Belgium. His name is recorded on the Warialda Honor Roll at the Town Hall.