"SCP-6515 is the position of Prime Minister of the United Kingdom, as established in the British order of precedence. Thorough investigation of U.K. history suggests that no SCP-6515 instance, since SCP-6515-1 ("Henry Campbell-Bannerman"), has been a non-anomalous human being. Despite this, there is no observable connection between SCP-6515 instances beyond U.K. politics; rather, multiple anomalous entities have each become SCP-6515 instances by pure happenstance. All evidence indicates that the fabricated identity of each SCP-6515 instance received their title via the typical political channels, in an entirely legitimate fashion."
I read the entire article, and it doesnt say anything about Agent Ash or Browning.