Atavus

b. Issachar WILLCOCKS
  d. 1693-10-26 buried at Stephens Green, Dublin
  m. Sarah UNKNOWN (d. 1698-03-15 buried at Stephens Green, Dublin)
    b. Sarah WILLCOCKS
       d. 1693 buried Stephens Green, Dublin
       m. 1693-03-26 to John HARRIS
    b. Caleb WILLCOCKS
       d. 1696-04-28
    b. Susanna WILLCOCKS
       d. 1696-07-08
    b. 1670 Joshua WILLCOCKS
       m. 1696 to Elizabeth FADE (d. 1754-12-10)
         b. 1697-09-29 Issachar WILLCOCKS
            m. Mary WEBB (b.1696 d.1732)
              b. 1723-04-13 Elizabeth WILLCOCKS
                 d. 1723-04 13
              b. 1725 Unknown WILLCOCKS
                 d. 1725
         b. 1699-04-18 Elizabeth WILLCOCKS
            d. 1700-10-04
         b. 1700-07-21 Sarah WILLCOCKS
            d. 1700-10-18
         b. 1701-09-23 Joshua WILLCOCKS
            d. 1703-07-04
         b. 1703-09-01 Hannah WILLCOCKS
            d. 1782-04-06
         b. 1705-20-22 James WILLCOCKS
            d. 1709-08-25
         b. 1706-07-09 John WILLCOCKS
            d. 1785-10-04
         b. 1707-11-16 Susanna WILLCOCKS
            d. 1792-01-11
            m. 1726-10-06 to Thomas GRIFFITHS
         b. 1709-02-26 Joseph WILLCOCKS
            d. 1787-03-10
            m. to Mary UNKNOWN (d. 1782)
         b. 1710-11-21 Joshua WILLCOCKS
         b. 1712-07-14 Elizabeth WILLCOCKS
            m. 1733 to Unknown WHITE
         b. 1714-12-06 Thomas WILLCOCKS in Dublin
            d. 1754-09-17
            m. Ann UNKNOWN
               b. Unknown WILLCOCKS 
                  m. Unknown FIRTH
               b. Unknown WILLCOCKS
                  m. Unknown GIBSON
               b. 1742 John WILLCOCKS of Dungannon, Co Tyrone, Ireland
                  d. 1807-07 at Dungannon
                  m. 1769 to Sarah LAWRENCE of Manchester England in Manchester England (d. 1817 at Dungannon)
                    b. 1771-05-30 Mary WILLCOCKS at Dungannon
                       m. 1790 to Unknown EVES (Married from Friends)
                    b. 1772-12-12 Thomas WILLCOCKS at Dungannon
                       d. 1802-01-21 at Lurgan
                       m. 1797-10-25 to Deborah HOUGHTON of Lurgan at Lurgan
                    b. 1774-08-12 John (James) Lawrence WILLCOCKS at Dungannon
                       d. 1803
                    b. 1775-11-23 Anne WILLCOCKS at Dungannon
                       m. 1801-08-23 to Joseph BOARDMAN at Grange
                          b. Celia Maria BOARDMAN
                          b. Sarah BOARDMAN
                          b. Thomas Willcocks BOARDMAN
                    b. 1778-08-05 Joseph WILLCOCKS at Dungannon
                       d. 1779-06-14 at Dungannon
                    b. 1779-07-28 Joseph WILLCOCKS at Dungannon
                       d. 1779-11-28 at Dungannon
                    b. 1780-11-12 Joshua WILLCOCKS at Dungannon
                       d. 1857-04-06 at Dungannon
                       m. Rebecca WALSH (married from Friends)
                          b. Beatrice WILLCOCKS
                          b. Eliza WILLCOCKS
                          b. William Hamilton WILLCOCKS
                             m. 1856-05-08 James PEPPER
                    b. 1783-07-13 Elizabeth WILLCOCKS at Dungannon
                    b. 1786-02-04 Sarah WILLCOCKS at Dungannon
                       m. Unknown LYONS
                          b. Sarah Jane LYONS
                             m. Unknown GREER
                    b. 1787-08-08 George WILLCOCKS at Dungannon
                       d. abt.1854 of Coal Island, Co Tyrone
                       m. Isabella CAULFIELD daughter of Rev. Charles CAULFIELD
                          b. 1820-1884 St George Lawrence WILLCOCKS
                          b. 1831-1891 Rev James Caulfield WILLCOCKS
                             m. 1857 Isabella SKELTON
                    b. 1791-01-01 Celia WILLCOCKS at Dungannon
         b. 1717-03-31 Sarah WILLCOCKS in Dublin
            b. 1718-10-27
    b. 1677-12-27 Thomas WILLCOCKS in Kings County
       d. 1713-06-25
       m. 1699 to Elizabeth INGLEFIELD
          b. 1702-08-31 Sarah WILLCOCKS
          b. 1704-06-12 Issachar WILLCOCKS
             m. 1726 to Sarah UNKNOWN
          b. 1706-08-12 Elizabeth WILLCOCKS
             m. 1725-03-18 to Thomas SHETTELL
          b. 1711-10-30 Thomas WILLCOCKS
             d. 1711 Thomas WILLCOCKS
          b. 1713-08-19 Abigail WILLCOCKS
          b. 1713-08-19 Lydia WILLCOCKS
             d. 1713-08-19 Lydia WILLCOCKS

Sources: 
PRONI D1044, D645, T662, D847, D562, D847, D4183
Quaker Births, Deaths, & Marriage Records (Ireland & England)
Will of John WILLCOCKS of Dungannon
Will of Celia WILLCOCKS of York
Will of George WILLCOCKS of Coalisland, Co Tyrone
Northern Wigg Newspaper, Tuesday 20 July 1852
Northern Wigg Newspaper, Wednesday 26 January 1870
Belfast News Newspaper, Tuesday 12 May 1874
PRONI Will Calendars, St George Lawrence WILLCOCKS, 7 October 1884
Marriage of John WILLCOCKS and Sarah LAWRENCE, 1769, Manchester England