Brennan William 1          (1811~1821-    )    census 1851: married, age 30-40, Lake George
 female                    (1811~1821-    )    census 1851: married, age 30-40
 female                         (17xx-    )    census 1851: age over 50
 female                    (1801~1811-    )    census 1851: age 40-50
 - male                    (1821~1831-    )    census 1851: single, age 20-30
 - female                  (1831~1841-    )    census 1851: single, age 10-20
 - female                  (1831~1841-    )    census 1851: single, age 10-20
 - male                    (1831~1841-    )    census 1851: single, age 10-20
 - female                  (1841~1851-    )    census 1851: age under 10
 - female                  (1841~1851-    )    census 1851: age under 10