Bowlby John G              (1821~1831-    )    census 1861: married, age 30-40
 female                    (1831~1841-    )    census 1861: married, age 20-30
 - female                  (1851~1856-    )    census 1861: age 5-10
 - female                  (1857-1858-    )    census 1861: age 4-5
 - female                  (1859~1860-    )    census 1861: age 1-2