The 4th Rate Ruby in the Commonwealth Navy

We know that Anthony Houlding commanded the 4th Rate Ruby up until his death at the Battle of Portland. R. C. Anderson lists Robert Saunders as the Ruby's captain at the Battle of the Gabbard. He was in William Penn's division (Admiral of the White) in that battle. He probably was also in command at the Battle of Scheveningen. Edmund Curtis commanded her from sometime later in 1653 through 1654. He is listed as captain in the Winter Guard list for 1653, from December 17, 1653. In a list from September 3, 1653, Robert Saunders was still captain of the Ruby. Robert Kirby commanded her from 1656 until 1660. In between, the Ruby had been in the Mediterranean Sea with Blake, in the war against Spain, but we don't know who was captain. We do know, from Michael Baumber, that in November 1654, Edmund Curtis was still in command. After that date, Blake's letters only refer to the ship, not the captain, so we can't be certain that Edmund Curtis was captain for the rest of the cruise, until Robert Kirby took command in 1656. The expedition to the Mediterranean Sea only ended in 1657, when his fleet returned to Portsmouth. He died right before reaching home.