Question: Who helped to develop the national flag that consists of a red field with a white square at is center entre in the ratio of 1:2:1, in the middle of which is featured a stylized, red, 11-pointed maple leaf charged in the centre?

Context paragraphs:
Toronto Maple Leafs: The Toronto Maple Leafs (officially the Toronto Maple Leaf Hockey Club) are a professional ice hockey team based in Toronto, Ontario.  They are members of the Atlantic Division of the Eastern Conference of the National Hockey League (NHL).  The club is owned by Maple Leaf Sports & Entertainment, Ltd. and are represented by Chairman Larry Tanenbaum.  With an estimated worth of US $1.1 billion in 2016 according to "Forbes", the Leafs are the third most valuable franchise in the NHL, after the Montreal Canadiens and the New York Rangers.  The team's broadcasting rights are split between BCE Inc. and Rogers Communication.  For their first 14 seasons, the club played their home games at the Mutual Street Arena, before moving to Maple Leaf Gardens in 1931.  The club moved to their present home, the Air Canada Centre in February 1999.

Toronto St. Patricks: The Toronto St. Patricks were a professional men's ice hockey team which began playing in the National Hockey League (NHL) in 1919.  The Toronto NHL franchise (league membership) had previously been held by the Arena Company (and the team called the "Arenas"), but despite winning the Stanley Cup the team was bankrupt and pulled out of the league after just two seasons.  The rights to the Toronto franchise was purchased by a group of investors with links to an amateur club called the "St. Patricks".  The new owners renamed the NHL franchise after the amateur club, and as the St. Patricks the team won the Stanley Cup in 1922.  J.P. Bickell invested in the St. Patricks in 1924 as a favor to Charlie Querrie.  In 1927, Charlie Querrie and other investors wanted out, J.P. Bickell made arrangements for other Toronto investors and initially hired Mike Rodden the Referee and sports writer to run the hockey operations, which didn't work out.  He then hired Conn Smythe as the Managing Partner.  The team was then renamed the Toronto Maple Leafs for a number of reasons, two of which are the Maple Leaf was an unofficial Canadian national symbol and secondly it was the name of the Toronto Maple Leaf Baseball Club 1896-1967.  They played from Maple Leaf Stadium since 1926.

Flag of Laos: The flag of Laos consists of three horizontal stripes, with the middle stripe in blue being twice the height of the top and bottom red stripes.  In the middle is a white disc, the diameter of the disc is ⁄ the height of the blue stripe.  The flag ratio is 2:3.  The national flag of Laos was first adopted in 1945 under the short-lived Lao Issara government of 1945–46, then by the Pathet Lao.  It is one of the only few flags of a currently communist country (besides Cuba) that does not use any communist symbolism on a national flag and the only current communist country that does not use a five-pointed star in its flag as an emblem.  The current flag was adopted on December 2, 1975 when it became a socialist state.

John Matheson: John Ross Matheson, {'1': ", '2': ", '3': ", '4': "} (November 14, 1917 – December 27, 2013) was a Canadian lawyer, judge, and politician who helped develop both the maple leaf flag and the Order of Canada.

Flag of Canada: The flag of Canada, often referred to as the Canadian flag, or unofficially as the Maple Leaf and l'Unifolié (French for "the one-leafed"), is a national flag consisting of a red field with a white square at its centre in the ratio of 1:2:1, in the middle of which is featured a stylized, red, 11-pointed maple leaf charged in the centre.  It is the first specified by law for use as the country's national flag.

Coat of arms of Wallis and Futuna: The coat of arms of Wallis and Futuna consists of elements from the unofficial flag of Wallis and Futuna featuring a red saltire on a white square, which in turn is placed on a red field (alternatively, a larger white cross pattée is used).  The cross is shifted a little off center and slightly downwards; the flag of France outlined in white on two sides is in the upper left quadrant.

Flag of Tonga: The flag of Tonga consists of a red field with a white canton charged with a red couped cross.  Adopted in 1875 after being officially enshrined into the nation's constitution, it has been the flag of the Kingdom of Tonga since that year.  The constitution stipulates that the national flag can never be changed.

Flag of the Republic of the Congo: The national flag of the Republic of the Congo consists of a yellow diagonal band divided diagonally from the lower hoist-side corner, with a green upper triangle and red lower triangle.  Adopted in 1959 to replace the French Tricolour, it was the flag of the Republic of the Congo until 1970, when the People's Republic of the Congo was established.  The new regime changed the flag to a red field with the coat of arms of the People's Republic in the canton.  This version was utilized until the regime collapsed in 1991.  The new government promptly restored the original pre-1970 flag.

Maple Leaf (GTW train): The Maple Leaf was a passenger train operated by the Grand Trunk Western Railroad ("Grand Trunk") between Chicago, Illinois and Toronto, Ontario.  It operated from 1927 to 1971.  The train took its name from the maple leaf, the national symbol of Canada.  The "Maple Leaf" was one of many trains discontinued when Amtrak began operations in 1971, and is unrelated to the "Maple Leaf" which Amtrak now operates between Toronto and New York City.

Flag of Manitoba: The flag of Manitoba is a variation of the Red Ensign which bears the shield of the provincial coat of arms.  This flag was approved by the passage of a bill in the Manitoba Legislative Assembly on May 11, 1965 and was officially proclaimed on May 12, 1966.  Queen Elizabeth II gave permission for the use of the Union device the preceding year (October 1965).  The decision to adopt the flag was made after the federal government decided to replace the Canadian Red Ensign with the Maple Leaf flag, which was quite controversial at the time.  The Manitoban flag, intentionally designed to resemble the Canadian red ensign, was seen as a way of preserving heritage that some felt was lost when the national flag was changed.  The flag of Ontario was adopted under similar circumstances.

Supporting paragraphs: John Matheson Flag of Canada
Answer: John Ross Matheson