Upvote:6
While I think that this should be moved to History.SE, I will begin the answer.
Queen Victoria of the United Kingdom is the only woman. Upper left with a crown.
The one who looks like Benito Mussolini is Benito Mussolini (in case you need more clues, he is under Queen Victoria, to the left).
Karl Marx (German philosopher who wrote the Communist Manifesto) is in the center of the top row.
Adolf Hitler (leader of Nazi Germany during World War II) is in the second row from the bottom, in the middle. He has a Nazi swastika on his sleeve.
Francisco Franco (right of Adolf Hitler).
Philippe Pétain (left of Adolf Hitler).
Franz Joseph I of Austria (right of Karl Marx). Initally I thought him to be William I of Germany, but he seems a lot more like Franz Joseph.
Winston Churchill (Prime Minister of the UK during WWII) is the second from the bottom on the right side.
Charles De Gaulle right under Winston Churchill (maybe in the French edition they will switch their positions?)
The man right of Franz Joseph could be William II of Germany, in particular the moustache seems to be very telling but of course maybe that style was popular back in the day.
The man between Queen Victoria and Philippe Pétain is Edward VII of Gt Britain, son of Victoria and father of George V.
The one directly between Francisco Franco and Karl Marx seems to be Léon Blum, Prime Minister of France.
Harold Wilson, Prime Minister of the United Kingdom (1964-1970, 1974-1976) directly beneath under Hitler, smoking a pipe.
Neville Chamberlain, British Prime Minister who preceded Churchill is the small figure squeezed between Franco and Churchill.
The man who is seen in the center is Oswald Mosley (hats off to WS2 for this one). A google search for "Oswald Mosley shouting" returns that picture, including the gesture he is doing with his hand. Unfortunately, all of the versions of the image I found that clearly stablish the name are in sites that I do not want to link to.
Photograph of a British newsboy after France, England, New Zealand and Australia declared war on Germany on 3 Sept. 1939, carrying poster reading "News of the World: War Declared (Official)."
And how could he have possibly remained unidentified - perhaps because it's not a good picture of him. But the imposing figure between Marx and Queen Victoria is none other than the Grand Old Man of Britain's late-Victorian liberalism - William Ewart Gladstone, Prime Minister four times 1868-74, 1880-85, a few months in 1886, and 1892-94. (The years in between were mostly filled by his Conservative nemesis the other Grand Old Man, Benjamin Disraeli).
The standing figure beneath Gladstone and Marx is David Lloyd George (British Prime Minister 1916-1922).