Prime Minister

Supposing that the liaison between the Minister for Magic and the Muggle Prime Minister has been conducted in the same way since the Ministry's inception, as well as supposing that the Muggle Prime Ministers in the Harry Potter universe are all the same as their real-life counterparts, then the following table illustrates the Ministers for Magic that would have introduced themselves to the respective Prime Ministers:
 * Lee Kuan Yew (1959 - 1990)
 * Goh Liang Chuan (1985 - 1997)
 * Goh Chok Tong (1990 - 2004)
 * Goh Liang Chuan (1985 - 1997)
 * Ng Ai Lin (1997 - 2000)
 * Law Chor Hoo (2001 - 2003)
 * Wong Bin Eng (2004 - 2010)
 * Lee Hsien Loong (2004 - present)
 * Wong Bin Eng (2004 - 2010)
 * Veronica Tay (2011 - present)