Total babies named Deltha (all years): 141
| Year | Girls (count / rank / %) |
|---|---|
| 1948 | 5 / #5428 / 0.000% |
| 1943 | 5 / #4830 / 0.000% |
| 1938 | 6 / #3941 / 0.001% |
| 1934 | 8 / #3222 / 0.001% |
| 1933 | 5 / #4361 / 0.001% |
| 1929 | 6 / #4183 / 0.001% |
| 1928 | 7 / #3849 / 0.001% |
| 1927 | 5 / #4979 / 0.000% |
| 1926 | 10 / #3092 / 0.001% |
| 1925 | 9 / #3432 / 0.001% |
| Year | Girls (count / rank / %) |
|---|---|
| 1924 | 12 / #2848 / 0.001% |
| 1923 | 10 / #3179 / 0.001% |
| 1922 | 12 / #2823 / 0.001% |
| 1921 | 6 / #4600 / 0.000% |
| 1920 | 8 / #3695 / 0.001% |
| 1918 | 7 / #3967 / 0.001% |
| 1917 | 7 / #3806 / 0.001% |
| 1916 | 5 / #4590 / 0.000% |
| 1915 | 8 / #3196 / 0.001% |