Richard Sadleir of New Zealand has traced his lineage back to Sir Ralph's brother John Sadleir. He has also compiled a list of Sadleir/Sadlier baptisms, marriages & burials from Church of Ireland records for Tipperary from 1780 onwards.

http://www.rootsweb.com/~irltip2/sadlier.htm

Richard's Tree:

1^st John Sadleir ( b.abt 1510) brother of Sir Ralph 
             All that is known is that he commanded a company at the Siege of Boulonge, 1544
  2^nd John Sadleir ( b abt 1535, d 1583)
             Stratford upon Avon where he was Alderman & High Bailiff 1570-71 m Joan Ensdale
                At least 4 children including
     3^rd John Sadleir ( b abt 1564 ,d 1625)
               Stratford upon Avon where he was Alderman 1598, High Bailiff  1599-1600, 1612-13
                   m.Isabella Smart abt. 1584 and had 4 children including
          4^th John Sadleir ( b 1587, d 1658 )
                  Stratford upon Avon and then a grocer in London. He had lands at Marchants Hope and Martins Brandon near present day Richmond in Virginia, USA. He was granted lands in Co.Tipperary, Ireland but died before he could take them up.  m. Elizabeth Quiney in 1610 and had 10 children  including  
{ The Sadleir, Quiney and Shakespeare families all intermarried and one Hamnet Sadler was godfather to William Shakespeare’s children and is mentioned in his will }
                5^th John Sadleir ( b 1632, d 1680 )
                        London, then estate of Ballintemple, Co.Tipperary. To Ireland under the Act of Settlement of Charles ll, 1669 where he took up his father’s lands. m Mary Clements abt.1660 and had 8 children including
                       Clement Sadleir of Shrone Hill ,Co.Tipperary  an ancestor of  the bank swindler  John Sadleir (1814-1856)
                           Samuel Sadleir ( b abt. 1667 , d 1717)
                        Shanballymore Co.Tipperary,  m. Hannah Taylor ( nee White) abt.1687 and had 8 children including
                             1^st Richard Sadleir ( b abt 1696 , d 1748 )
                             Scaliheen co. Tipperary  m a Mary abt 1720 and had 3 children including
                                     2^nd Richard Sadleir ( b abt 1725 )
                                  Tipperary Town, where he was a merchant and factory owner. m Mary Alleyn in 1749 and had at least 5 children including
                                                  James Sadleir of Tipperary town and then Cork , an ancestor of  Major George Forster Sadleir  ( 1789-1859) the first European to cross Saudi Arabia in 1819  and of  Richard Sadleir ( 1795-1889) R.N.,J.P. who fought in the 1814-1815 war against USA, emigrated to Sydney, Australia in 1826. He was elected to government there, wrote the first book on aboriginals, and was the first mayor ( 1872) of Liverpool. There are many Sadleirs in Australia descended from him. A suburb of Sydney is named Sadleir after him.
                                                   3^rd Richard Sadleir ( b 1748, d 1817 )
                                               Holycross, Co.Tipperary and then Tipperary Town, Freeman of Cork ,1792  m. ( his 1^st cousin, twice removed ) Grace Sadleir in 1783 and had 11 children including
                                                          James Sadleir ( b 1792 d 1864)
                                                   Brookville Co. Tipperary  m Elizabeth Hare Clarke in 1819 and had  10 children  { The oldest son James Robert Sadleir stayed at Brookville  but his oldest son  James Robert McMahon Sadleir emigrated to California USA and has descendents there, J.R.M’s brother Marshal died in Brookville in 1963 and the estate was sold out of the family. The other 4 sons of James & Elizabeth  emigrated to Australia  , Richard Sadleir in 1852, married no children, John , see below ,with Nicholas in 1852. Nicholas, a prominent station manager in western N.S.W and Tasmania had a large family with many living descendents in Australia, Argentina and Scotland.  Marshal Clarke went to Victoria in 1872 and has descendents in Australia }
                                                              6^th John Sadleir( b 1832 d 1919)
                                                    Emigrated to Melbourne ,Australia in 1852, joined Victorian Police. He was Superintendent in charge of the operation which captured the infamous outlaw Ned Kelly in 1880,He wrote a book on his recollections. m Isabella Maria Crofton in 1857 and had 12 children. There are over 120 descendents of this couple all born in Australia
{ four of John & Isabella’s sons went to the Western Australia Goldfields in 1895 –Ernest William, Ralph Crofton,Henry Woodward , see below, and George Nicholas . The last 3 started a customs and shipping agency in Fremantle which continues today as Sadleirs Transport}
Henry Woodward Sadleir ( b 1871 d 1954 )
   Enlisted West Australian contingent, Boer War 1901, stayed in South Africa then shipping business 1912-1950 in W.A. m Irene Frances Rose in 1905 and had 3 sons including
          Ralph Crofton Rose Sadleir ( b 1909 d 1994 )
              Enlisted A.I.F , 2^nd/16^th battalion 1940-43, Wounded in Action 1941  Batchelor of Arts Univ. W.A. 1965   m Lyle Ann Stuart Boyd 1935 and had 2 children including 
                   Richard Michael Francis Stuart Sadleir ( b. 1936 )
                    Batchelor of Science 1957, Ph.D. 1961 ( Univ. W.A.)  Fellowships, B.C, Canada, Aberdeen, Scotland & London 1962-1967. Professor, Bio.Sci. Simon Fraser Univ., Burnaby, B.C. Canada 1968-1980. Director DSIR NZ , then Director of Sci. Dept Conservation NZ 1981- 1996.
 50+ scientific papers and three books  m Charlotte Tweedlie Grant 1962  and has 3 children   

Writer of this family tree  August 2004