______
              |      b.
              |      bp.
              |      m.
              |      mp.
              |      d.
              |      dp.
              |
        ______
        |      b.
        |      bp.
        |      m.
        |      mp.
        |      d.
        |      dp.
        |     |
        |     |_____
        |            b.
        |            bp.
        |            d.
        |            dp.
        |
  ______Thomas B. Robertson
  |      b.   ABT. 1822
  |      bp.
  |      m.
  |      mp.
  |      d.   27 APR 1878
  |      dp.  San Francisco, San Francisco Co., CA
  |     |
  |     |     ______
  |     |     |      b.
  |     |     |      bp.
  |     |     |      m.
  |     |     |      mp.
  |     |     |      d.
  |     |     |      dp.
  |     |     |
  |     |_____
  |            b.
  |            bp.
  |            d.
  |            dp.
  |           |
  |           |_____
  |                  b.
  |                  bp.
  |                  d.
  |                  dp.
  |
  Ellen Elizabeth Robertson
   b.   2 JUL 1848
   bp.  Liverpool, Lancashire, ENG
   m.   16 AUG 1870
   mp.  San Francisco, San Francisco Co., CA
   d.   22 AUG 1901
   dp.  Tacoma, WA, USA
  |
  |Spouse: Francis William Gatter
  |
  |           ______
  |           |      b.
  |           |      bp.
  |           |      m.
  |           |      mp.
  |           |      d.
  |           |      dp.
  |           |
  |     ______
  |     |      b.
  |     |      bp.
  |     |      m.
  |     |      mp.
  |     |      d.
  |     |      dp.
  |     |     |
  |     |     |_____
  |     |            b.
  |     |            bp.
  |     |            d.
  |     |            dp.
  |     |
  |_____Annie E.
         b.
         bp.
         d.
         dp.
        |
        |     ______
        |     |      b.
        |     |      bp.
        |     |      m.
        |     |      mp.
        |     |      d.
        |     |      dp.
        |     |
        |_____
               b.
               bp.
               d.
               dp.
              |
              |_____
                     b.
                     bp.
                     d.
                     dp.