The brevet rank, however, meant that there was no active role, until called, for Allen.

He was given the brevet rank of brigadier general on December 2, 1864.

He left the army the following year, having risen to the brevet rank of major.

He was given the brevet rank of colonel on 1 July 1935.

He was granted brevet rank as a colonel on 1 March 1711.

He was appointed to the brevet rank of major general for war service dating from March 13, 1865.

He received the brevet rank of brigadier general in 1865.

At the end of the war, he received the brevet rank of major general.

Following his retirement, he was awarded the brevet rank of general in 1841.

He received the brevet rank of major general, dating from March 1865.