| 1950 | The World Song and World Brownie Badge adopted by the 13th World Conference. |
| All England Ranger Rally held at the Albert Hall and White City Stadium. | |
| 1951 | First All England Cadet Rally. |
| 1952 | HM Queen Elizabeth II joined her Mother as Joint Patron of the Guide Association. |
| Lady B-P visited Blackpool and Lancaster. | |
| Brownie Pack Holiday House opened at Waddow. | |
| 1953 | Coronation of HM Queen Elizabeth II. Guides undertook Tributes of Service. |
| Members wore the Coronation Tribute Badge. | |
| HM Queen Elizabeth agreed to the renaming of the Queen’s Guide Award to the Queen’s Guide Badge. | |
| 1954 | 15th World Conference approved the establishment of the International Fellowship of Former Scouts and Guides. The Trefoil Guild in the UK was a founder member. |
| 1955 | Imperial Guide Headquarters renamed Commonwealth Headquarters. |
| 1956 | The third World Guide Centre, Our Cabaña at Morelos in Mexico, dedicated. |
| 1957 | Baden-Powell Centenary Year. |
| Guides and Scouts celebrated their Founder’s birth in 1857. | |
| Lady B-P attended two of the four World Camps including the one held at Windsor Great Park, England. | |
| 1959 | Princess Anne, the Queen’s daughter, enrolled as a Brownie. |
| Lady B-P laid the Foundation Stone of Baden-Powell House in London. | |
| Cadets and Rangers merged into a new Senior Section. | |
| 1960 | Golden Jubilee Celebration of over 5 million Guides and Girl Scouts. |
| Birthday Festival held at the Empire Pool, Wembley. | |
| Queen Elizabeth, the Queen Mother, became Patron of the Trefoil Guild. | |
| 1962 | The first edition of The Brownie published. |
| 1963 | Lady B-P officially opened Brownsea Island in Poole Harbour at the invitation of the National Trust. |
| Guides and Scouts given permission to camp on Brownsea Island where B-P held his experimental camp in 1907. | |
| Our Ark renamed Olave House in honour of Olave, Lady B-P. | |
| 1964 | Brownies celebrated their Golden Jubilee. |
| Guide Friendship Fund started. | |
| 1965 | Death of Princess Mary, The Princess Royal, who had been President since 1920. |
| Princess Margaret, the Queen’s sister, appointed President. | |
| 1966 | Sangam, the fourth World Centre, opened at Pune in India. |
| Raise the Roof appeal launched to add another floor to Commonwealth Headquarters. | |
| A team of Guides set a new girls’ record for the Cross-Channel swim. | |
| 1967 | The Student Scout and Guide Organisation (SSAGO) formed for Ranger Guides and Venture Scouts attending College or University. |
| Lady B-P visited Preston and Waddow for its Ruby Jubilee Celebrations. | |
| 1968 | The new Eight Point programme and Guide Handbook introduced. |
| 1969 | Official recognition of mixed units of Ranger Guides and Venture Scouts. |