Frederick explored many areas of coastline around the world and conducted an overland survey of the Mediterranean coast of Africa with his older brother Henry William Beechey (half-brother). In 1854, he was made rear-admiral, and in the following year was elected president of the Royal Geographical Society.
His son Frederick Stapleton Beechey and George Beechey accompanied his brother Henry to New Zealand when he emigrated in 1851. Rear Admiral Beechey died in 1856.
Dictionary of National Biography - Source Citation: Stephen, Sir Leslie, ed.; London, England: Oxford University Press; Dictionary of National Biography, Volumes 1-20, 22; Volume: Vol 02; Page: 121; Source Information: Ancestry.com. Dictionary of National Biography, Volumes 1-22 [database on-line]. Provo, UT, USA: Ancestry.com Operations, Inc., 2010. Name: Frederick William Beechey; Birth Date: 17 Feb 1796; Death Date: 29 Nov 1856; Father: Sir William Beechey
Marriage - "England Marriages, 1538–1973 ," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:NJW8-R99 : 10 December 2014), William Frederick Beechey and Charlotte Stapleton, 11 Dec 1828; citing Thorpe, Surrey, England, reference , index based upon data collected by the Genealogical Society of Utah, Salt Lake City; FHL microfilm 413,276.
Death - "England and Wales Death Registration Index 1837-2007," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:2N2L-FJM : 31 December 2014), Frederick William Beechey, 1856; from "England & Wales Deaths, 1837-2006," database, findmypast (http://www.findmypast.com : 2012); citing Death, Kensington, London, England, General Register Office, Southport, England.
"England and Wales Census, 1851," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:SGFT-7PC : 29 July 2017), Frederick W Beechey, Paddington, Middlesex, England; citing Paddington, Middlesex, England, p. 35, from "1851 England, Scotland and Wales census," database and images, findmypast (http://www.findmypast.com : n.d.); citing PRO HO 107, The National Archives of the UK, Kew, Surrey.
Note to Probate (1865) - "New Zealand, Archives New Zealand, Probate Records, 1843-1998," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:QKYR-RNS2 : 15 July 2017), Frederick William Beechey, 1865; citing Christchurch, Christchurch Probate Files, 1855-2003, record number CHA468/1865, Archives New Zealand, Auckland Regional Office; FamilySearch digital folder 100214197.