Need the proper schematic markup for a business CEO, founder and founding date

[VanguardCommunications]

I'm trying to apply schematic markup to our client's website to help influence the knowledge graph.  Can anybody give me the exact schematic markup for business CEO, founder and founding date?   I've visited schema.org and know the markup exists...but I want to make sure I'm applying them properly.

Thanks!

[Ray-pp]

For verification of your markup, use the Google Structured Data Testing Tool:

http://www.google.com/webmasters/tools/richsnippets