81st Pioneers which became the 10th (Training) Battalion, 1st Madras Pioneers in 1922.
81st United States Congress | Young Pioneers | Sons of the Pioneers | 81st Academy Awards | O Pioneers! | Mormon pioneers | Pioneers | List of submissions to the 81st Academy Awards for Best Foreign Language Film | pioneers | (Young) Pioneers | Wilkes-Barre/Scranton Pioneers | Western Mass Pioneers | The 81st Blow | Daughters of Utah Pioneers | Young Pioneers (novel) | Young Pioneers' Christmas | Union of Pioneers of Yugoslavia | Tomorrow's Pioneers | The former Pioneers' Palace in Sormovo | Rochdale Society of Equitable Pioneers | Rochdale Pioneers Museum | Pioneers Park | O Pioneers! (opera) | MidAmerica Nazarene Pioneers | Malawi Young Pioneers | List of railway pioneers | 81st Pioneers | 81st meridian west | 81st meridian east | 64th Pioneers |