Total babies named Birt (all years): 273
| Year | Boys (count / rank / %) |
|---|---|
| 1953 | 5 / #3859 / 0.000% |
| 1950 | 7 / #3057 / 0.000% |
| 1943 | 7 / #2990 / 0.000% |
| 1938 | 5 / #3573 / 0.000% |
| 1937 | 5 / #3577 / 0.000% |
| 1933 | 5 / #3705 / 0.001% |
| 1932 | 5 / #3835 / 0.000% |
| 1930 | 5 / #4053 / 0.000% |
| 1927 | 5 / #4266 / 0.000% |
| 1926 | 12 / #2447 / 0.001% |
| Year | Boys (count / rank / %) |
|---|---|
| 1925 | 5 / #4269 / 0.000% |
| 1924 | 12 / #2488 / 0.001% |
| 1923 | 5 / #4308 / 0.000% |
| 1922 | 13 / #2354 / 0.001% |
| 1921 | 11 / #2650 / 0.001% |
| 1920 | 13 / #2349 / 0.001% |
| 1918 | 11 / #2563 / 0.001% |
| 1917 | 12 / #2298 / 0.001% |
| 1916 | 13 / #2166 / 0.001% |
| 1915 | 12 / #2198 / 0.001% |
| Year | Boys (count / rank / %) |
|---|---|
| 1914 | 6 / #2960 / 0.001% |
| 1913 | 5 / #2866 / 0.001% |
| 1909 | 5 / #1474 / 0.003% |
| 1908 | 5 / #1396 / 0.003% |
| 1897 | 6 / #953 / 0.005% |
| 1894 | 7 / #870 / 0.006% |
| 1890 | 6 / #899 / 0.005% |
| 1887 | 6 / #832 / 0.006% |
| 1886 | 6 / #854 / 0.005% |
| 1885 | 10 / #611 / 0.009% |
| Year | Boys (count / rank / %) |
|---|---|
| 1884 | 5 / #985 / 0.004% |
| 1883 | 9 / #652 / 0.009% |
| 1882 | 6 / #853 / 0.005% |
| 1881 | 11 / #538 / 0.011% |
| 1880 | 7 / #755 / 0.006% |