yeah i think your right. i thought the white lights i had was white widow x northern lights.Willy Jack also has Black Russian. I got it plus the other two you mentioned, but haven't started them yet. I'm sure their great though. I've read nothing but good things about Willy's strains. An Northernpike is Northern Lights X Jack Herer not White Widow.
http://www.drchronic.com/products.asp?recnumber=1765
"Northern Lights x Jack Herer is always going to be a good idea. And it is indeed, now that Willy Jack Seeds have done it and named it Northern Pike"~Willy Jack