The following is an abbreviated family tree for my branch:
Steve Duck
Kenneth Duck Journalist and BBC correspondent (1917-1986) and Joan Surname witheld (1916-
Duck Tree
Charles Henry Duck Insurance traveler of Bristol (1870-1938) and Edith Emily Kellaway (1874-1958)
Richard Weatherill Duck, Chemist of Whitby, Cardiff and Bristol (1837-?1881) and Lucy Marwood (1839-1870)
Newby Weatherill Duck, Bootmaker of Whitby (1803-1867) and Hannah Todd (1803-1879)
Jane Duck, spinster (1778-1827) [and, presumably, Newby Weatherill]
Molyneux Duck farmer of Egton and Whitby [aka Monerax, Monax, Manac] (1745-1812) and Elizabeth Coverdale (1744-1792)
John Duck, Blacksmith of Upleatham (1692- 17??) and Ann Smith (1692-1773) both catholic recusants
Francis Duck yeoman of Skelton (????-1737)
Tree speculative beyond this point though the relationships of these participants are known
Chistopher Duck Egton and Skelton (died c 1680)
Stephen Duck Skelton and Egton (died c 1650)
John Duck Skelton (died c 1620)
John Duck Skelton and Brotton (died c 1594)
George Duck Skelton (died 1554)
SURNAME WITHELD Tree
[Joan Surname witheld]
George [Surname witheld] shoemaker of Pucklechurch (1874-1937) and Florence Gresswell milliner of Leeds and then Bristol (1873-1960)
Charles [Surname witheld] of Pucklechurch (1832-1891) and Sara Smet (1835-1912)
James [Surname witheld] of Pucklechurch (1793-1855) and Sarah Angell (1798-1863)
Thomas [Surname witheld] of Pucklechurch (1760-1838) and Jane Mealing (1766-1829)
John [Surname witheld] of Stepney, London (bef 1727- after 1760) and Dorcas ????
Since there is no recorded instance of this surname in the whole of the United Kingdom before 1727, it is presumed that they were a family of German clockmakers (one of whom lived as such in Bristol in 1750) who were immigrants from Hanover arriving in the time of King George I