Jack,
I saw your question shortly after you posted it but didn't answer, hoping someone with better search skills than I would take a look. Since no one's answered yet, I wanted to let you know you're not being ignored..... I looked for evidence Lt. Zachariah Parker had a son named Silas but found none. I'd recommend you contact David Lamb (manager for Silas Parker's profile) and ask for his sources. If none can be provided, it's reasonable to disconnect Silas from Lt. Zachariah Parker.