Coinciding with the fiftieth anniversary of the Apollo 1 tragedy, a bill has been introduced in the US House of Representatives (H.R. 6147) to build a memorial in Arlington National Cemetery for the three astronauts who died on January 27, 1967, when a fire broke out inside their Apollo 1 Command Module. There are memorials in the cemetery remembering the crews of Challenger and Columbia who perished in 1986 and 2003, respectively. The bi-partisan legislation introduced by Texas Representative Eddie Bernice Johnson has several sponsors, and I hope that it will pass soon.
Please contact your Representative in the House to voice your support. In the meantime, you can visit the graves of Roger Chaffee and Virgil “Guss” Grissom, both of whom are buried at Arlington National Cemetery. The third Apollo astronaut Ed White is buried at West Point. See:http://www.spacepolicyonline.com/news/house-members-seek-apollo-1-memorial-at-arlington-cemetery
Those who are interested in the status of the legislation can see its process through Congress and even sign up for alerts: https://www.congress.gov/bill/114th-congress/house-bill/6147/all-actions-without-amendments