Total babies named Prospero (all years): 71
| Year | Boys (count / rank / %) |
|---|---|
| 1975 | 5 / #6088 / 0.000% |
| 1947 | 5 / #4145 / 0.000% |
| 1933 | 5 / #4043 / 0.001% |
| 1930 | 6 / #3908 / 0.001% |
| 1929 | 6 / #3860 / 0.001% |
| 1928 | 8 / #3299 / 0.001% |
| 1925 | 7 / #3660 / 0.001% |
| 1924 | 7 / #3775 / 0.001% |
| 1923 | 5 / #4748 / 0.000% |
| 1917 | 5 / #4442 / 0.001% |
| Year | Boys (count / rank / %) |
|---|---|
| 1916 | 5 / #4365 / 0.001% |
| 1915 | 7 / #3323 / 0.001% |