Frederick George "Derick" Emmison MBE FSA FRHistS (28 May 1907 – 9 November 1995) was a British archivist, author and historian.

[1][4][5] He was also a prolific author who made a significant contribution to our understanding of the Elizabethan era through close analysis of the minutiae of local records of that age in Essex.

[1][5] He was quick to master the work and earn the respect of the county with many important documents being deposited at the record office during his tenure by local churches in particular.

[1] In time the Essex Record Office became a publishing house for local history and Emmison became a prolific author.

[5] His Elizabethan Life series "demonstrated the richness of sources for the period and his ability to relate local material to the wider canvas".