PITTSBURG, Kan. — Known as Greyshirts because of their distinctive T-shirts, Team Rubicon, a veteran-led humanitarian organization founded by two Marines in 2010, will be hosting a recruiting drive at Drop the H Brewing Company in Pittsburg at 6 p.m. on Feb. 23. “We hope to rejuvenate existing Greyshirt participation in the Pittsburg area by answering questions and giving Greyshirts the chance to learn about how they can be more involved in Team Rubicon,” said Dana Tompson, Kansas state administrator for Team Rubicon. Tompson is hosting the event with her husband, Jeremy.