The US lastname database was extracted from randomNamesData.
Its origin is the US census.
Usage
lastname_us
Arguments
Format
A data frame with 3 variables:
lastname
last name
freq
probability of being named as lastname as a sex and is race
race
1) American Indian or Native Alaskan, 2) Asian or Pacific Islander,
3) Black (not Hispanic), 4) Hispanic, 5) White (not Hispanic) and
6) Middle-Eastern, Arabic.