I have been down this long, painful road. First, look at Lingua::EN::NameParse, it can help. Second, consider the following names:

• J R Jones
• JR Jones (Yes, no vowel in the first name. I have an uncle who is WD Bascombe, III; it's that way on his birth-certificate, and no, his father was not WD, Jr....)
• J. R. R. Tolkein
• Inez dela Vega y Montoya
• Louis de la Salle
• Tiger (Single name, not first, not last, just 'name')
• J. R. Jones, III

sigh