The latest list of MPs who have announced their intention to retire at the coming General Election can be found here. This list is regularly updated. Michael Crick has also written on the issue - and he is responsible for the graph showing retirees at each General Election since 1945. That year was exceptional since the 37th Parliament of the United Kingdom had lasted 10 years (extended because of World War Two). It now seems likely that the 2010 Election will see more retirees since that date.
Many well known names will be absent from the 55th Parliament - some as a result of the Expenses scandal, but many are choosing to stand down after long service. 1997 held the previous post 1945 record for retirees - at the end of 18 years of a Conservative Government.
Washminster will be looking at some of the probable new intake during the coming months.