UDHAM SINGH (1882-1926), revolutionary and Ghadr leader, was born on 15 March 1882 at the village of Kasel in Amritsar district. His father`s name was Meva Singh and mother`s Hukam Kaur. He passed his early years in his village grazing cattle and working on the family`s small farm. He had had no formal education. 1907, he left home to seek his fortune abroad. He first went to Penang and then to Teping, in the Malay States, where he became a signaller in the Malay States Guides. There he picked up Malay and English languages, but resigned from the Guides and left for the United States of America.
BHAG SINGH, BHAI (1872-1914), one of the leaders of the Punjabi immigrants in Canada, was born at the village of Bhikhivind, in Amritsar district. His father`s name was Narain Singh and mother`s Man Kaur. Bhag Singh joined the British Indian cavalry at the age of twenty, receiving a discharge certificate of meritorious service when he resigned. Thereafter he served in the municipal police at Hankow, China, for about three years, resigning from the service to go to Canada, where he settled in Vancouver.
BHAN SINGH (d. 1917), a Ghadr activist, was the son of Savan Singh, of the village of Sunet, in Ludhiana district of the Punjab. As a young man, Bhan Singh migrated to Shanghai and then moved to America where he started taking interest in Ghadr activity. He was among those who returned to India to make Ghadr or armed revolution in the country. Travelling by the Tosa Maru he reached Calcutta on 19 October 1914, but was arrested and interned in Montgomery jail.
SANTOKH SINGH, BHAI (1893-1927), a Ghadr leader, was born in Singapore in 1893, where his father, Javala Singh, of the village of Dhardeo (Amritsar district), was employed as a gunner in the army. Santokh Singh had his early education in a school in Singapore and learnt Punjabi (Gumukhi script) at home from his father. For higher education he came to the Punjab and joined the Khalsa College at Amritsar, from where he passed the Entrance examination in 1910. He gave up his studies and went to the United Stated of America in 1912 where he came in contact with Sant Vasakha Singh and Bhai Javala Singh, who were owners of potato ranches and were working for the freedom of India.