Inside the 'Russian' or 'Chinese' theme text file are five or six delineated lists. Male first names, female first names, last names*, rank names, colony names, ship class names. . . possibly I'm forgetting one.
I believe Aurora has a folder called 'Themes' where it keeps all these text files. It's eaey enough to edit the appropriate text file to include more names, and as long as you follow the existing formatting everything will work out fine.
*Russian might actually be special and contain separate male and female LAST names as well.